Spinosaur dinosaur fossils - the truth

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Spinosaurus aegypticus

  • Certain dinosaur species are prone to compositing, heavy restoration – of particular note are the brittle teeth of the huge Moroccan dinosaur Spinosaurus aegypticus.
  • Whilst there is not one complete skeleton anywhere worldwide for this species, teeth are frequently discovered and readily available for a dinosaur hungry market.
  • Permineralization is not as robust as (for instance) North American counterparts with the teeth virtually always excavated broken requiring repair – this in itself is not an issue, but with the brittle enamel and dentine often too broken for adequate repair, all too often one whole tooth is manufactured from two.
  • The joint is then usually filled with sand, impregnated with glue and presented as a genuine original example. Some very basic composition and repair is commonly seen with Spinosaur teeth 25% to 40% comprising glue and sand with tooth size being easily increased by artificially extending the root (often covered with matrix).
  • Moroccan artisans may create Spinosaur bones from camel bones (both extant and extinct) – even claws may be carved and shaped (including replication of blood grooves and nutrient pores) – with genuine Spinosaur claws attracting high prices, the profit to be made from carving mammalian bone can be considerable.
  • Again it is essential the collector source material only from qualified dealers, preferably preparators – here at Triassica.com we have the professional experience of a United Kingdom University degree qualified biologist – indispensable for determining genuine morphology of fossil specimens, beyond the superficial similarities that a piece may present with.
  • Fabrication of Spinosaur material does not end with teeth and claws - frequently vertebrae and miscellaneous bones are purported as originating from the Jurassic Park favourite, whereas they may more likely represent crocodilians.
  • As an example of a genuine dinosaur claw from Morocco, the specimen below serves ideally - totally prepared by Triassica in house, the claw exhibits a wealth of fine, minute detail (sadly the image size allowed for eBay guides does not permit anything larger).
  • The blood grooves are clearly evident and defined running to the tip of the claw - numerous nutrient and blood vessel pores can also be seen.
  • In this instance there was no need for any repair and to preserve scientific integrity of the piece, no restoration was performed - the natural fissures, freeze cracks were retained - the proximal articulation was not built up.
  • The size of this particular claw was around 5" along the dorsal curve.
  • Note the complete absence of matrix, sand, glue, resin - frequently such medium are utilised by Moroccan artisans to cover a multitude of faults and thus increase the fossils value.  
  • Mike Holmes BSc.DipBiolSci.CertNatSci.CertContSci.MRI.AMBCS.AMIBiol.FZS

     

    Genuine Moroccan dinosaur claw prepared by triassica.com

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