Dr KARL SHUKER

Zoologist, media consultant, and science writer, Dr Karl Shuker is also one of the best known cryptozoologists in the world. He is the author of such seminal works as Mystery Cats of the World (1989), The Lost Ark: New and Rediscovered Animals of the 20th Century (1993; greatly expanded in 2012 as The Encyclopaedia of New and Rediscovered Animals), Dragons: A Natural History (1995), In Search of Prehistoric Survivors (1995), The Unexplained (1996), From Flying Toads To Snakes With Wings (1997), Mysteries of Planet Earth (1999), The Hidden Powers of Animals (2001), The Beasts That Hide From Man (2003), Extraordinary Animals Revisited (2007), Dr Shuker's Casebook (2008), Karl Shuker's Alien Zoo: From the Pages of Fortean Times (2010), Cats of Magic, Mythology, and Mystery (2012), Mirabilis: A Carnival of Cryptozoology and Unnatural History (2013), Dragons in Zoology, Cryptozoology, and Culture (2013), The Menagerie of Marvels (2014), A Manifestation of Monsters (2015), Here's Nessie! (2016), and what is widely considered to be his cryptozoological magnum opus, Still In Search Of Prehistoric Survivors (2016) - plus, very excitingly, his four long-awaited, much-requested ShukerNature blog books (2019-2024).

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Showing posts with label megatherium. Show all posts
Showing posts with label megatherium. Show all posts

Sunday, 20 June 2021

THE DINOSAURS OF CRYSTAL PALACE - VISITING LONDON'S LOST WORLD. Part 1: MEGALOSAURUS, MEGALOCEROS, MEGATHERIUM, AND MORE!

 
Benjamin Waterhouse Hawkins's Crystal Palace studio in 1853, containing some of his completed statues of prehistoric 'monsters' (public domain)

On 22 April 2010, I finally fulfilled a lifelong ambition, by visiting a veritable Lost World of dinosaurs and other monstrous members of our planet's prehistoric fauna. Yet this particular Lost World was located not atop some lofty South American mesa, or concealed amid some remote African rainforest. Instead, it was cosily ensconced within a leafy, tranquil setting not very far from the frantic hustle and bustle of central London. I refer of course to Crystal Palace Park, and its spectacular array of life-sized (albeit far from life-like) palaeontological reconstructions, which date back to Victorian times and include the earliest representations of dinosaurs ever created.

Today, they are considered by many to be nothing more than antiquated curiosities, at least as far as their direct relevance to modern-day fossil studies is concerned. Yet in historical terms, their significance is immense, as is their aesthetic value as stunning works of art. So here via this comprehensive 3-part ShukerNature blog article, I invite you all to pay a virtual, verbal visit with me to these extraordinary creations, and uncover their fascinating histories and mysteries.

 
Standing in front of the iconic Megalosaurus statue in the Dinosaur Court at Crystal Palace Park, London, on 22 April 2010 (© Dr Karl Shuker)

I first learnt of the Crystal Palace dinosaurs from one particular animal book that (along with many others) my mother had bought me when I was a child, back in the 1960s. A compilation of chapters written by several different authors, and which I still own today as a fond reminder of my early years, it was entitled Children's Encyclopedia of Knowledge: Book of Nature, and had been published by Collins in 1967. I'd also been bought a number of books devoted specifically to dinosaurs and other prehistoric beasts. Yet whereas the respective reconstructions in these latter books of the various famous dinosaurs' likely appearance in life all compared well with one another, those in my Book of Nature were radically different. This notable discrepancy puzzled me for some time until I finally uncovered the answer.

The dinosaur illustrations in the above-named book were photographs of enormous statues on display in southeast London's Crystal Palace Park, but they more closely resembled giant, misshapen lizards than the very distinctive, familiar forms depicted in all of my dinosaur books. Back in those far-distant pre-internet times, it took a while for me to learn more about them, but during the mid-1970s I bought Adrian J. Desmond's bestselling book The Hot-Blooded Dinosaurs (1975), which included a fascinating history of how and when the first dinosaur remains had been discovered, and it was here that the secret of Crystal Palace Park's mystifying monsters was at last revealed to me.

 
Vintage engraving of the Crystal Palace in Hyde Park, London, for the Great Exhibition, 1851 (public domain)

The year 1851 saw Central London's Hyde Park host the world-famous Great Exhibition (1 May-15 October), which was a huge exposition showcasing the finest achievements of British industry as well as including displays from other countries around the world too. It was housed within a spectacular, palatial exhibition centre designed by Sir Joseph Paxton and composed extensively of glass, which duly became known as the Crystal Palace. Although initially intended to be merely a temporary creation, so popular did this very imposing, impressive edifice prove to be that when the Great Exhibition ended, instead of being demolished the Crystal Palace was purchased for £50,000 by the new, specially-created Crystal Palace Company, which then paid for it to be dismantled and moved in its entirety from Hyde Park to Penge, situated on the lower slopes of Sydenham Hill, southeast London.

Here it was painstakingly reassembled and became the focus of a new, specially-designed park, with beautiful landscaped gardens, lakes, statues, and many other eyecatching features. These included what became its most famous attractions – the incredible statues of huge dinosaurs and other exotic-looking prehistoric animals created by English sculptor and artist Benjamin Waterhouse Hawkins (1807-1894).

 
Benjamin Waterhouse Hawkins sitting (Maull & Polyblank Wellcome/Wikipedia – CC BY 4.0 licence)

Despite having become extinct many millions of years ago, dinosaurs are among the most popular of all animals in today's world, their diverse imagery appearing everywhere, from books and films to toys and postage stamps, as well as being represented by countless displays in museums worldwide. All of which makes it all the more surprising, therefore, that although dinosaur fossils had been dug up by geologists and excavators for centuries, it was not until 1824 when the first dinosaur was scientifically named.

This was the 25-30-ft-long carnivorous theropod Megalosaurus ('big lizard'), a saurischian or lizard-hipped dinosaur, by Oxford University's Professor of Mineralogy and Geology, the Reverend William Buckland, based upon fossil remains unearthed in Oxfordshire, and originally thought to indicate a creature measuring around 40 ft long. A year later saw the naming of a second dinosaur form, the herbivorous 30-40-ft ornithopod Iguanodon, based upon remains found in the Tilgate Forest area of West Sussex by English palaeontologist Gideon Mantell and initially deemed by him to have measured around 60 ft long. This was followed in 1833 by a third, Hylaeosaurus, a herbivorous spiny ankylosaur, originally thought to have been approximately 25 ft long but nowadays downsized to around 10-13 ft. Its remains had been exposed after an explosion had demolished a quarry face not far from where Mantell's Iguanodon remains had been obtained. Both of these latter forms are ornithischian or bird-hipped dinosaurs, and both were named by Mantell.

 
Professor Sir Richard Owen (public domain)

When ideas were being sought for subjects to be represented in the new Crystal Palace Park, the suggestion of constructing life-sized representations of extinct animals was put forward, although there is still some controversy as to its originator. However, Queen Victoria's enterprising consort Prince Albert (already responsible for the Great Exhibition itself), Britain's foremost zoologist and palaeontologist of the day, Prof. Sir Richard Owen (1804-1892), and the Crystal Palace's designer, Sir Joseph Paxton, were all probably involved. Once this notion had been formally accepted, in September 1852, Hawkins was duly commissioned by the Crystal Palace Company to construct these statues, using concrete, brick, lead, and steel.

Initially, the plan was to concentrate upon prehistoric mammals, with thoughts of reconstructing mastodonts, mammoths, and other furry wonders from the distant past. But once Hawkins had read some of Owen's publications, it wasn't long before the prospect of also reconstructing dinosaurs reared its reptilian head. At that time, only the above-named trio of dinosaurs had been formally recognized, so Hawkins decided to recreate all three of them with life-sized sculptures to show what they may have looked like in life. Moreover, as his work progressed, the scheme was expanded still further to include reconstructions of quite a number of other archaic beasts too.

 
'The 'Crystal Palace' from The Great Exhibition', an engraving by George Baxter, after 1854 (Wellcome Images-Wikipedia – CC BY4.0 licence)

Indeed, by the end of the project, no fewer than 33 statues representing 20 different animal species had been produced (together with some reconstructions of fossil plants too, such as cycads), yielding a major attraction dubbed Dinosaur Court (aka Dinosaur Park), which encompassed three specially-created islands within a large artificial lake, situated near the southern end of Crystal Palace Park itself. Although the idea was to focus upon such creatures that had once existed in Britain, some non-native examples were also represented, Hawkins having utilised fossil remains from Holland when reconstructing the mosasaur, for instance, from South Africa for Dicynodon, and from South America for Megatherium.

This unique project was nearing completion by the end of 1853, so to mark with suitable panache its impending official opening, a lavish banquet given by Hawkins was held on 31 December, New Year's Eve, of that same year, at which 21 notable dignitaries invited by him attended, including Owen and world-renowned bird painter John Gould. And the setting for this celebration? None other than inside Hawkins's colossal hollow mould for the construction of his standing Iguanodon statue! Never before, and probably never again, would such an event take place quite literally inside the bowels of a Mesozoic mega-beast!

 
Banquet inside the mould of Hawkins's Crystal Palace Iguanodon statue, New Year's Eve 1853 (public domain)

Just over 5 months later, on 10 June 1854, Crystal Palace Park was formally opened by Queen Victoria and Prince Albert. Furthermore, no fewer than 40,000 visitors were in attendance, anxious to see what the media were enthusiastically referring to as an incredible assemblage of antediluvian monsters, i.e. labeling them as giant creatures that were believed by Creationists and other religious figures from that time to have existed on Earth during its earliest age before being wiped out by the Great Flood.

Although initially proving very popular, the Crystal Palace Park's Dinosaur Court eventually fell out of favour, especially once continuing palaeontological discoveries revealed that most of its reconstructions were actually very inaccurate. Neglected, especially after the Crystal Palace's destruction by fire in 1936, the statues eventually became partially hidden amid an overgrowth of undergrowth, and suffered considerably from damage caused not only by external, environmental influences but also by vandalism. Happily, following a first major restoration project in 1952, the historical significance of Hawkins's creations as a pioneering palaeontological venture was belatedly recognized, and in 1973 they were officially classed as National Heritage Grade II Listed Monuments, upgraded to Grade I in 2007. Meanwhile, an extensive second restoration project had taken place in 2002, recreating their dignified former appearance, making many repairs to their crumbling forms, and overseen by the London Borough of Bromley, the landowner of Crystal Palace Park.

 
Indigo Iguanodons in 1995, before the 2002 restoration, showing their previous countershaded paint scheme with white undersides (public domain)

Intriguingly, I'd long heard rumours that during the 1970s and possibly beyond, some of these statues were painted in bright garish colours. Only recently, however, have I uncovered some notable details concerning this hitherto scarcely-documented chapter in their long-running saga.

For example: during their 'painted period', the standing Iguanodon statue was initially rendered a deep olive green with contrasting white underparts and golden jaw edges, but by the late 1970s both Iguanodon statues were dark indigo blue dorsally, pure white ventrally (although their throat region began as a flushed pink shade, subsequently fading to white). They still sported this colour scheme during the 1990s (as confirmed by some early 1990s videos and mid-1990s photos of them), whereas in still later photos they are a pale mint green. In addition, Mandy Holloway, Curator of Fossil Reptiles, Amphibians, and Birds at London's Natural History Museum at that time, has shown me a photograph snapped by her of the left-hand side of the Megalosaurus (nowadays uniformly grey all over) that reveals the presence of a thick red horizontal stripe running along its lower flank, and striations of the same shade upon its limbs.

 
Crystal Palace's Iguanodons when mint-green in colour (© CGPGrey/Wikipedia – CC BY 2.0 licence)

Moreover, the charity organization Friends of Crystal Palace Dinosaurs (FOCPD – click here to access their fascinating and very worthy website) kindly alerted me to a music video from 1977 currently accessible online (click here to view it) that features the late singer Lena Zavaroni boating past these dinosaur statues while singing the song 'I Had A Brontosaurus', in which the Megalosaurus is almost entirely bright red. I'd initially assumed that this vivid colouration was simply a special-effect created for the video, but Mandy confirmed that it was genuine – the Megalosaurus having been painted red on the instructions of the now long-defunct Greater London Council (GLC), which was also responsible for painting the other statues in Dinosaur Court that were brightly coloured during that period. Apparently, the reason for doing so was to make the statues appealing to young visitors, as a children's zoo had also been set up there, on Tertiary Island.

Correspondent Sam Crehan has shown me a full-colour photo of the Megalosaurus statue during its red phase that appears in the little children's book I-Spy Dinosaurs and Prehistoric Animals, and which reveals that its underparts (not very visible in the Lena Zavaroni music video) were white. (I suspect that the statue's red colour in the video, so bright that it virtually glows, has been enhanced, to make it more visible against its dark, shadowy background.)

 
From I-Spy Dinosaurs and Prehistoric Animals as scanned by Sam Crehan, a full-colour photo of the Megalosaurus statue during its red phase (© Faber & Faber/I-Spy Ltd/Michelin – reproduced here on a strictly non-commercial Fair Use basis for educational/review purposes only)

In January 2021, Crystal Palace Dinosaurs devotee Anthony Hawkins posted on FOCPD's Facebook page a photo of the Megalosaurus when red with white underparts that dated from December 1980. And a similar photo from 1979 was an entry in the 2016 Arles Festival of Photography, Rencontre d'Arles, a premier event for photographic art.

Finally, Canadian cryptozoological friend Sebastian Wang has drawn my attention to the official website of Palaeoplushies, a manufacturer of plush toys, which includes in its list of products not one but two versions of the Crystal Palace Megalosaurus – identical in shape and size, but very different in colour. For whereas one is grey, the other is red. In its official description of these two Megalosaurus versions, Palaeoplushies refers to the grey one as ""Classic Grey" – The current weathered grey concrete look", and to the red one as ""70s red" – The look this statue had during the 70s" (click here to view and/or purchase these Megalosaurus plushies on the Palaeoplushies website). In short, Megalosaurus really was red in colour during the 1970s and at least as recently as the early 1980s too. This in turn means that Mandy's photo of it sporting just a horizontal red flank stripe and some red leg markings was snapped at a time when most of its red paint had been removed or painted over, or had simply faded away (red and yellow pigments are very prone to fading when exposed to sunlight).

 
My resin model of the Crystal Palace Megalosaurus statue – my model's original golden-scaled form (top) and digitally recoloured to show what the statue would have looked like during its red-painted period (bottom) (© Dr Karl Shuker)

Dinosaur Court's prehistoric creatures were originally located upon, and also within the waters surrounding, three artificial islands (named Tertiary, Secondary, and Primary), and most of these statues are still there today. The general public can walk around the islands (but not as yet directly upon them, except during special annual Open Days) via a railed public footpath on the Court's mainland portion, which affords excellent views of all of the statues. The islands are arranged in geological order, with their respective creatures dating from the Cenozoic Era back as far as the Permian Period of the late Palaeozoic Era. However, the Mesozoic Era is the Court's principal focus, because that is when most of the archaic beasts represented here existed, during the Age of Reptiles, as this era is commonly termed.

After arriving inside Crystal Palace Park's Dinosaur Court, if we begin our journey through geological time with the most recent creatures represented here, as I did, the first of Hawkins's statues encountered are four different mammals from the Cenozoic Era. These were formerly present on Tertiary Island, but except for the ground sloth they have now been relocated on the nearby mainland.

 
Anoplotherium herd in Crystal Palace Park's Dinosaur Court (© Simon/Wikipedia – CC BY 2.0 licence)

One of these mammals is Anoplotherium, represented by a small herd of three statues when I visited and photographed them in 2010 (yet some sources claim that only two exist). It was a primitive artiodactyl ungulate (even-toed hoofed mammal) from the late Eocene and early Oligocene Epochs (c.37-33 million years ago).

Anoplotherium is nowadays thought to be related to camels and llamas, and which Hawkins did provide with a camel-like head and neck. Its fossil remains have been found widely across Europe, including Hampshire and the Isle of Wight in the UK.

 
Anoplotherium herd seen from the opposite side, Crystal Palace (© Dr Karl Shuker)

Also represented here is Palaeotherium, another primitive hoofed mammal, in existence at much the same time as Anoplotherium and whose remains have again been found in Hampshire and the Isle of Wight. Unlike Anoplotherium, however, Palaeotherium was a perissodactyl (odd-toed) ungulate. Originally there were three statues of it, but the largest one mysteriously vanished sometime after the late 1950s and has never been seen again.

Hawkins followed the opinion of eminent French zoologist Baron Georges Cuvier concerning the likely appearance of Palaeotherium in life, reconstructing it to resemble those modern-day perissodactyls the tapirs. Today, conversely, palaeontologists generally depict it as a perissodactylian parallel to the artiodactylian giraffe's shorter-necked forest relative, the okapi.

 
One of Hawkins's Crystal Palace Palaeotherium statues (© Dr Karl Shuker)

My favourite Hawkins mammals are his very imposing giant deer or Irish elks Megaloceros giganteus, consisting of two antlered adult stags standing regally and an antler-lacking adult doe reposing with her fawn close by. Even today, these statues still correspond well with palaeontological thoughts regarding their likely appearance. This is because Hawkins based them upon living modern-day deer.

In addition, for his stag statues' antlers he utilized actual complete fossils of the famously magnificent antlers borne by this species' stags, but in subsequent years these real fossil antlers were replaced by replicas. Their remains have been found not only in Ireland but also on the Eurasian mainland, including as far east as Siberian Russia. Some have been dated to as recently as the early Holocene, 8000 years ago.

 
Giant deer aka Irish elks Megaloceros giganteus at Crystal Palace Park (© Neil Cummings/Wikipedia – CC BY-SA 2.0 licence)

Finally, a suitably huge Pliocene/Pleistocene Megatherium or giant ground sloth from Argentina squats upright on its haunches, grasping a tall tree. However, it sports a short trunk-like proboscis that is no longer thought to have been a valid feature of this creature.

Over the course of many years following the sloth's installation at Dinosaur Court in 1854, the girth of the tree that it is grasping grew so wide that it broke the sloth's left forearm, which needed to be restored. And at the time of my visit in 2010, its right paw was missing.

 
Front and side views of the Megatherium statue in 2010, clearly revealing that its right front paw was missing at that time (© Dr Karl Shuker)

Also worth noting is that at one stage during its long and distinguished existence, this very spectacular statue shared its location with the afore-mentioned children's zoo. That must surely be the only example of such a zoo to contain a giant ground sloth in its midst!

Moreover, although this Crystal Palace example is the first Megatherium statue to have been attempted by Hawkins, in subsequent years its gigantic species would again be an inspiration to him when designing a second major exhibit, as will be revealed later here.

 
19th-Century engraving of the Crystal Palace Megatherium, depicting it when its right front paw was still intact (public domain)

Memorable though these bygone mammals are, it will come as no surprise to learn, however, that the most popular portion of Dinosaur Court is the next island to which the mainland public footpath now leads, Secondary Island. For this contains Hawkins's most famous creations – his Mesozoic dinosaurs and pterosaurs.  Moreover, on its shore and also in the adjacent waters of Dinosaur Court's lake are Mesozoic plesiosaurs, ichthyosaurs, sea crocodilians, and a mosasaur.

So that is where our virtual tour of Crystal Palace's Lost World will be taking us tomorrow, in Part 2 of this ShukerNature blog article (click here to access it) – back in time to the astonishing Age of Reptiles. And after that comes Part 3 (click here to access it), where I reveal the tragic tale of Hawkins's ill-fated Palaeozoic Museum, planned to be a major attraction in New York City. Don't miss them!

 
My mother Mary Shuker and the Megatherium statue at Crystal Palace Park on 22 April 2010 (© Dr Karl Shuker)

 

Monday, 2 October 2017

HOW TO MEET A MEGATHERIUM ON A STREET IN ENGLAND


The Iguanodon and Megatherium acting as supporters to the University of Cambridge's coat of arms, as carved above the archway of one of the entrances leading into the university's Sedgwick Museum of Earth Sciences (© Keith Edkins/Wikipedia – CC BY-SA 2.0 licence)

It's not every day that you can meet up with a Megatherium – one of South America's giant prehistoric ground sloths – on a street in England, or anywhere else, for that matter, unless that street just so happens to be Downing Street (no, not that one!), in the English university city of Cambridge. For if it is, you can walk along it and gaze up at a Megatherium as often and for as long as you want to. And not just at a Megatherium either, as it will always be in the company of another palaeontological stalwart, the famous ornithischian dinosaur known as Iguanodon. Bemused? Allow me to explain.

Front view of the Sedgwick Museum, situated directly above the university's Department of Earth Sciences (© Sebastian Ballard/Wikipedia – CC BY-SA 2.0 licence)

The Megatherium and Iguanodon in question are a pair of large, ornamental carvings flanking (or supporting, to use the correct heraldic term) the university's coat of arms present above the archway of one of the entrances to the Sedgwick Museum of Earth Sciences. Also referred to as the Sedgwick Memorial Museum, it is based in Downing Street, Cambridge, and constitutes the oldest of this university's eight academic museums.

Bronze statue of the Rev. Prof. Adam Sedgwick, created by eminent British sculptor Onslow Ford in 1901, which is on permanent display inside the museum at the junction of its two wings (© Sebastian Ballard/Wikipedia – CC BY-SA 2.0 licence)

This museum is named in honour of one of England's most celebrated geologists, the Reverend Prof. Adam Sedgwick (1785-1873), who spent his academic life working at the University of Cambridge, and it was built to honour him and to contain his very sizeable collections of geological and palaeontological specimens, as well as those of English naturalist Dr John Woodward (1665-1728). Woodward was a fellow geologist who had bequeathed to the university half of his collection of over 9,000 specimens amassed by him over 35 years (the university subsequently purchased the other half), together with funds to establish the Woodwardian Professorship of Geology there (and to which Sedgwick was in due course appointed).

Engravings of Dr John Woodward (left) and the Rev. Prof. Adam Sedgwick (right) (public domain)

These collections were all held at that time in what was then the university's Woodwardian Museum, established in 1728, but which would require a much greater capacity if it were to accommodate further additions. Hence the building of a bigger museum, honouring Sedgwick, was duly proposed. After several delays and false starts, the Sedgwick Museum's construction was finally approved on 16 February 1899, under Prof. Thomas Graham Jackson as architect, and was officially opened on 1 March 1904. Built at what was back then a notably expensive cost of £40,000, it now contains the collections of Woodward, Sedgwick, and countless other specimens too, currently totalling around 2 million rocks, minerals, and fossils.

Vintage engraving depicting how the interior of the then Woodwardian Museum once looked, with the skeleton of a giant deer (aka Irish elk) Megaloceros giganteus prominently displayed; it is still on display today in the Sedgwick Museum (public domain)

One of the Sedgwick Museum's most celebrated specimens on display is the very imposing replica cast of a complete skeleton of an Iguanodon bernissartensis, which was donated to the University of Cambridge by Brussels-based palaeontologist Louis Dollo during the late 1880s via King Leopold II of Belgium. At least 38 complete or near-complete Iguanodon skeletons had been recovered from a coal mine at the Belgian town of Bernissart in 1878. Nine of them were subsequently assembled as upright-standing mount specimens for display at the Royal Belgian Institute of Natural Sciences in Brussels (a total of 30 Iguanodon specimens can be seen in its Museum of Natural Sciences today), and it was from one of these that the cast prominently on display at the Sedgwick Museum was taken. This famous exhibit in turn explains the choice of an Iguanodon as one of the two supporters carved above its Iguanodon/Megatherium archway.

Vintage illustration of a Bernissart Iguanodon skeleton assembled in upright stance (public domain)

True, the skeleton cast's upright, rearing stance is now deemed to be incorrect (modern-day palaeontological belief holds that Iguanodon adopted a more horizontal stance), but back then this was how science assumed that this very sizeable dinosaur form stood in life, and explains why the archway's Iguanodon carving is also depicted in upright stance (note too the dragonesque series of dorsal triangular spines running down the carving's back – another now-rejected morphological feature). Moreover, being directly inspired by this cast, the museum's logo has always been an upright bipedal Iguanodon as well (it would be too costly and troublesome to change it now, especially as the logo is so well known).

Modern-day artistic reconstruction of an Iguanodon in a more horizontal stance (public domain)

As for the Megatherium: the Sedgwick Museum's collection includes a partial Megatherium skeleton (and also a historic cast of it) that formed part of Sedgwick's original (1840) Woodwardian Museum collection. Moreover, the Sedgwick Museum is closely associated with Charles Darwin, as it houses a number of his scientifically-priceless specimens, and he famously discovered a Megatherium skeleton during his South American voyages, so the choice of this mega-mammal as the second supporter carved over the archway serves as a very apposite visual representation of this museum's Darwin links. In 2009, it curated a major public exhibition entitled Darwin the Geologist, to coincide with the Darwin bicentenary celebrations (Darwin was born in 1809). This exhibition focused upon his early geological research, and it displayed many of the specimens collected during his famous Beagle voyage.

Artistic reconstruction of the likely appearance in life of the Megatherium or giant ground sloth (public domain)

Incidentally, the Iguanodon and Megatherium are not the only prehistoric beasts depicted externally at the Sedgwick Museum. So too is the woolly mammoth Mammuthus primigenius, courtesy of the following detailed relief – present just to the left of the museum entrance whose archway bears the above-noted dinosaur and ground sloth carvings:

Woolly mammoth relief on the outer wall situated just to the left of the Iguanodon/Megatherium archway (© Vysotsky/Wikipedia – CC BY-SA 4.0 licence)

The Sedgwick Museum is open six days a week (closed on Sundays and some Bank Holidays), has free entry, and contains countless fascinating geological and palaeontological specimens on public display – click here to visit its official website for full details. So why not wander down Downing Street, introduce yourself to the Iguanodon and meet up with the Megatherium as they stand tall in stately support, before entering the wonderful world of our planet's distant past as encapsulated within this celebrated museum's spectacular array of exhibits and displays?

Side view of Sedgwick Museum of Earth Sciences showing woolly mammoth wall relief and entrance door bearing Iguanodon/Megatherium archway (© Google Earth Maps 2016 – reproduced here on a strictly educational, non-commercial Fair Use basis for review purposes only)

And if anyone can tell me the name of the sculptor who produced the Iguanodon and Megatherium carvings (and presumably the woolly mammoth relief too), I'd be extremely grateful, because I have so far been unable to discover this – many thanks indeed!

Close-up of the Sedgewick Museum's Iguanodon/Megatherium archway, revealing the exquisite detail of its two prehistoric supporters (© Vysotsky/Wikipedia – CC BY-SA 4.0 licence)




Friday, 28 July 2017

HOW A GIANT SNAKE BECAME A SPIKY SEASHELL – WELCOME TO THE MAUSOLEUM OF MONSTERS


One of several artworks by Swiss painter Henry Fuseli (1741-1825) with a cryptozoological connection – Reiter Von Riesenschlange Überfallen ('Horseman Attacked By A Giant Snake'); watercolour, painted in c.1800 (public domain)

In contrast to insidious and infamous zoological frauds such as Piltdown Man and the stuffed mermaids of Oriental origin, many cases of confused taxonomic classification have occurred not through deliberate, predetermined intentions to create non-existent creatures or to lure scientists along false trails, but instead via simple misidentifications. Nonetheless, the results have often been both unexpected and spectacular, but few more so than in the case of the giant venomous serpent of South America's Gran Chaco region. After all, how can such an ostensibly monstrous reptile transform into a spiky seashell of far more modest proportions and far less dangerous attributes?

As I now reveal here in ShukerNature, the story of this astonishing metamorphosis, though largely forgotten today, must surely rate as one of the most extraordinary (and embarrassing) incidents in the entire history of 20th-Century zoology.

Gran Chaco location on map (public domain)

Deep within the most secluded realms of the mystery beast investigator's mind lies a dark and mournful cemetery, whose gates are for the most part firmly chained and heavily barred. Whenever his speculations and theories aspire to the grandiose and gothic, however, he is forced to tread the shadowy pathway leading to this most dreaded and dreadful of destinations - the mausoleum of monsters.

In this forsaken spot – within this cryptic catacomb of mythological mammalia, apocalyptic archosauria, and other fabulous fauna of every type - no ordinary assemblage of skeletons is ensconced. No, indeed. Here, amongst shattered dreams and mocking illusions, lie the hastily-jettisoned remains of those great zoological discoveries that were subsequently exposed as sorry misidentifications. A faux-pas phantasmagoria, whose forbidding presence within the annals of zoology serves as a stern warning to all cryptozoologists of the perils of premature pronouncement or imprudent identification. Let us tarry a while here, and examine one of its most dramatic examples.

A veritable mausoleum of monsters – an exquisite 19th-Century engraving depicting some of the Victorian-age prehistoric animal sculptures of Crystal Palace created by English sculptor Benjamin Waterhouse Hawkins (1807-1894) (public domain)

In 1926, the Proceedings of the Royal Society of Edinburgh published a paper by Prof. Sir John Graham Kerr, at that time Regius Professor of Zoology at the University of Glasgow, in which he described a huge, curved poison fang belonging to a hitherto unknown genus and species of giant snake - which he formally named Bothrodon pridii (with Bothrodon translating as 'furrow-tooth').

Approximately 2.5 in long as measured along the outside of the curve, this fang was truly enormous.

Bothrodon pridii 'fang', pictured in 1926; scale in mm (public domain)

Indeed, as noted by now-retired mollusc expert David Heppell from the Royal Museum of Scotland who documented this specimen in The Conchologist's Newsletter (March 1966), it was roughly nine times longer than that of a 6-ft-long boomslang Dispholidus typus - one of the world's deadliest snakes.

Moreover, it even dwarfed the fangs of the Gaboon viper Bitis gabonica. Native to much of sub-Saharan Africa, this formidable serpent not only is the largest member of the genus Bitis and the world's heaviest species of any type of viperid, but also holds the record for the longest fangs of any known species of snake alive today – up to 2 in long.

Gaboon viper showing its huge fangs (© Brimac the 2nd/Wikipedia CC BY 2.0 licence)

Accordingly, judging from the relative size of the fang, Prof. Kerr estimated that the total length of its venomous owner, Bothrodon pridii, could have approached 60 ft or so.

Truly a monster, in every sense of the word!

Prof. Sir John Graham Kerr (© T & R Annan & Sons Ltd/Wikipedia CC BY 4.0 licence)

The poison fang had been obtained by one of Kerr's friends, missionary Andrew Pride (after whom Kerr had named this outsized ophidian) from the Gran Chaco's silt-like deposits, which dated back no further than the Pleistocene epoch (2.5 million to 11,700 years ago). Despite a prolonged, thorough search of this locality by Pride for this mega-snake's skeletal remains, however, none were found.

In his paper Kerr concisely described the fang's appearance, including the prominent poison groove running all along its apparent external face, as well as the two narrow parallel stripes, dark-brown in colour, that lay along the distal (terminal) portion of its length. He also discussed the possible phylogenetic relationships of Bothrodon pridii itself, by comparing its fang's morphology with that of contemporary snake species.

The boomslang, an opisthoglyphan snake, depicted in 1838 (public domain)

From these studies, Kerr concluded that the fang most closely resembled those of the opisthoglyphans. This is a group of rear-fanged colubrid snakes that include the boomslang, and which point the way towards the more highly-evolved present-day venomous snakes. In addition, Kerr deduced from the fang's peculiar hook-like shape that, rather than functioning as a striking fang, it most probably served to hold the prey stationary whilst its poison entered the wounds produced by the snake's other teeth in the prey's flesh.

Sherlock Holmes would certainly have approved - because Kerr's paper demonstrated most effectively the considerable amount of information concerning an entire organism (be it serpent or sapient!) that could be obtained by meticulous analysis of only a single component of that organism. Or so it seemed...

Reconstruction of the giant ground sloth Megatherium (public domain) alongside a fossil skeleton of it at London's Natural History Museum (© Dr Karl Shuker)

Kerr duly presented this unique fang to the Hunterian Museum of the University of Glasgow, and in 1933 a cast of it was displayed alongside a label stating that Bothrodon may have fed upon cumbersome plains-dwelling creatures such as the giant ground sloth Megatherium.

Conversely, noted herpetologist Dr Raymond Ditmars suggested small mammals as likely prey in his classic book Snakes of the World (1931).

Dr Raymond Ditmars (public domain)

Nevertheless, Ditmars was palpably impressed by Kerr's discovery and documentation of Bothrodon, exclaiming in his snake book:

It was during the preparation of this manuscript that the author received the greatest surprise in the many years he has studied the serpent clan – and it related to a rear-fanged snake.

Its possible stature also greatly excited Ditmars:

As the poison-conducting teeth of the rear-fanged snakes are short in proportion to the body length, the size of this monster is open to thrilling conjecture...Indeed the thought it inspires rather dulls the conjectural image of that dinosaurian star, Tyrannosaurus, whose races passed away ages before this mammoth Bothrodon prowled the soil.

I'm not quite sure how a limbless creature can be said to prowl; but in any event, as a serpent of substance Bothrodon remained unchallenged – until 1939, that is, when it was unceremoniously dethroned, disgraced, and, worst of all, exposed as nothing more than a snail in snake's similitude!

Chiragra spider conch's shell, underside (© Udo Schmidt/Wikipedia CC BY-SA 2.0 licence)

For Dr W. Quenstedt, after closely examining a coloured cast of the fang sent to the University of Berlin's Paleontological Museum by Prof. Kerr, recognised the specimen's true identity. It was one of those six curved projections, long and groove-bearing, that fringe the large shell aperture of Lambis [now Harpago] chiragra, the Chiragra spider conch - a large and ornate, modern-day species of Indo-Pacific gastropod mollusc! Every feature of the 'fang' confirmed this identity – its size, shape, long groove, brown stripes. There could be no mistake – Bothrodon pridii was no more.

To be fair, however, Kerr's misidentification is not as surprising as it may seem on first sight. After all, he could hardly have been expected to anticipate the discovery within the deposits of Paraguay's Gran Chaco of a shell fragment from a gastropod normally inhabiting the Indo-Pacific oceans.

Bothrodon 'fang' and shell projection from Chiragra spider conch's shell (public domain)

Indeed, this one aspect of Bothrodon's bizarre history remains totally unexplained and seemingly inexplicable even today. How could a section of shell from a modern-day Indo-Pacific mollusc have been obtained in Gran Chaco? David Heppell noted that there is no question that Gran Chaco was the locality involved. Thus, as he remarked, the discovery can be explained only by way of some human introduction.

Notwithstanding this, the survival of Bothrodon pridii within the zoological literature on taxonomic synonyms serves as a stark reminder of just how easily and how far one can travel along the wrong track after having once set foot upon it. Certainly, although many weird metamorphoses have been documented from the animal kingdom, few can surely compare with the transformation of a giant snake into a spiky seashell!

Chiragra spider conch's shell, upper side (© James St John/Wikipedia CC BY 2.0 licence)

As a curious footnote (assuming of course that anything concerning snakes can possess a foot!): even though the re-identification of the Bothrodon 'fang' as a prong from the shell of a Chiragra spider conch was swiftly and fully accepted by the herpetological community following Quenstedt's dramatic denouement in 1939, it is possible that Kerr himself was not so quick to accept this embarrassing revelation.

The reason why I suggest this is that while browsing very recently through Kerr's book A Naturalist in Gran Chaco, first published in 1950 and chronicling the zoological expedition that he mounted during the late 1890s to this vast semi-arid region of southern South America (overlapping northwestern Bolivia, western Paraguay, northern Argentina, and a small portion of southwestern Brazil), I was very surprised to find that although he included just over a page devoted to the Bothrodon specimen's discovery and his studies of it, he made no mention whatsoever of its molluscan re-identification. Equally, however, I can find no mention anywhere of his ever having publicly discounted or disputed this latter taxonomic reassignment of it.

Hardback first edition of Sir John Graham Kerr's book A Naturalist in Gran Chaco (© Sir John Graham Kerr estate/Cambridge University Press – reproduced here on a strictly non-commercial Fair Use basis only, for educational/review purposes)

So how can we explain this very curious, and conspicuous, absence in Kerr's book, which was first published more than a decade after Quenstedt's fateful, published declaration? As Kerr died just seven years later, in 1957, it is likely that we shall never be able to answer this highly intriguing question with any degree of certainty.

Taxonomically speaking, therefore, Bothrodon pridii may indeed be long dead and buried within the mausoleum of monsters, but perhaps its mystery is not entirely extinguished after all.

My own close encounter with a giant snake… - a magnificent life-sized sculpture by Tim Johnman of a reticulated python at Taronga Zoo in Sydney, Australia, which I visited in 2006 (© Dr Karl Shuker)