Edited by oilshale
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Spinosaur Caudal Vertebra
Images: 
By LordTrilobite (edited)
Taxonomy
Spinosaur
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Saurischia
Family: Spinosauridae
Genus: Spinosaurus
Species: cf. Spinosaurus aegyptiacus
Author Citation Stromer 1915
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Cretaceous
Sub Period: None
Epoch: Late
International Age: Cenomanian
Stratigraphy
Kem Kem Compound Assemblage
unknown formation
Provenance
Acquired by: Purchase/Trade
Dimensions
Width: 5.1 cm
Height: 9.7 cm
Location
Taouz
Kem Kem beds
Errachidia Province
Afghanistan
Comments
A distal caudal vertebra of a Spinosaurid.
What's slightly unusual about this vertebra is that it's slightly more slender than most Spinosaurid caudal vertebrae, which have a more square shaped centrum as seen from the lateral side. I am currently uncertain whether this is individual variation or that it might be taxonomically significant.
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