Zygorhiza, early whale tooth molar Dimetrodon this distribution of Mesosaurus supports

this distribution of Mesosaurus supports the understanding that these great continents were once joined together

perhaps an oxbow lake

probably preying on other large dinosaurs like the hadrosaur Saurolophus or the sauropod Nemegtosaurus

The multituberculates had a cranial and dental anatomy superficially similar to rodents such as mice and rats

The pectoral fins were narrow and pointed

Zygorhiza, early whale tooth molar Dimetrodon this distribution of Mesosaurus supportsZygorhiza was an archaeocete whale that lived during the late Eocene, about 40 million years ago. This ancient marine mammal had a long snout that contained many sharp teeth. The nostrils were located towards the end of the snout. Although retaining some land animal characteristcs (like differentiated teeth), it was more whale like than Basiliosaurus. It had a snake like body and small hindlimbs (including a mobile knee and toes). Many fossils have