Assertion: plesiosaur's neck | /r/MadeOf | as many as 76 vertebrae
Facets:
Source sentences:
text: Later in the Early Cretaceous, the Elasmosauridae appeared; these were among the longest plesiosaurs, reaching up to fifteen metres (fifty feet) in length due to very long necks containing as many as 76 vertebrae, more than any other known vertebrate.