Campylognathoides was named by Strand in 1928. Fossils have been found in Germany and India. They evolved from amphibians during the Early Carboniferous period, about 340 million years ago and went extinct at the end of the Triassic period , about 250 million years ago. They had four sprawling legs and a long tail. Class Sauropsida, subclass Anapsida , Infraclass Captorhinida .
Amphibians become more common.
This African carnosaur was larger than T. rex . The type species is C. saharicus . The tooth dates from the middle Jurassic period , about 170 million years ago. Cardiodon, a large plant eater, was a cetiosaurid sauropod , was named by paleontologist Richard Owen in 1841. The type species is C. rugulosus .