Fishy! #Pachyrhizodus is a Late #Cretaceous #fish that exceeded 8’ and 300 lbs. “Thick root tooth” was named by Dixon in 1850 for a thick, massive jaw with teeth similar to #mosasaurs. Dixon placed it in the Sphyraenidae, alongside the #barracuda. Today it belongs in its own family, #Pachyrhizodontidae, a member of the #teleosts, or ray-finned fishes. #Enchodus-“spear tooth” name by Agassiz in 1835, is a lancet fish relative dubbed the saber-toothed herring because of its wicked-looking, oversiz