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The original egg was found in China and is from the Cretaceous time period of about 100 million years ago
Pathological teeth develop with distorted or disfigured crowns
Astephus antiquus is an extinct for of catfish found in the Green River Formation of Wyoming
so a Megalodon had about 276 teeth at any given time
Baryphracta deponiae, Messel Crocodile Spinosaurus The original egg was foundThis specimen has not yet been positively identified. It doesn't appear to be a Diplocynodon and based on the following brief discussion, it has been tentatively identified as Baryphracta deponiae. Only juveniles of the species Diplocynodon and Baryphracta deponiae have been found at Messel indicating that these two species most likely lived continually or periodically in the lakes. The other six Messel species visited only occasionally or
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