Megalodon Tooth Progression With 8, 6 Inch Teeth Spinosaurus Maiasaura was probably closely related

Maiasaura was probably closely related to Brachylophosaurus

Like other members of their phylum they are spiny skinned

and perhaps suggest that these ammonites may often have died shortly after spawning

As the soft dentine wore down

Other paleoanthropologists argue that its brain size of 510 cc (in contrast to 1470's 750 cc) indicates a size difference too great to be due to sexual dimorphism and represents a separate species

Megalodon Tooth Progression With 8, 6 Inch Teeth Spinosaurus Maiasaura was probably closely relatedThis replica Megalodon tooth progression shows 2 sets of 4 rows of 6 inch teeth. The teeth are cast from real teeth. The jaw section is our reconstruction of a jaw section because jaws are rarely preserved because they are cartilage that seldom fossilized. Megalodon had 46 front row teeth, 24 in the upper jaw and 22 in the lower jaw. Most sharks had at least six rows of teeth, so a Megalodon would have had about 276 teeth in its mouth at any given