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and isopods (sow bugs)
the first Megatherium fossil was found in Brazil in 1789
people often refer to the coelacanth as a "living fossil
Seventy million years ago
Thrinaxodon, cynodont (therapsid) Compsognathus and isopods (sow bugs)Thrinaxodon (pronounced thrin AX ah DON) was a cat sized cynodont, an ancestor of the mammals, but not a mammal itself. Thrinaxodon was not a dinosaur. This therapsid lived during the late Triassic period, roughly 240 million years ago. Small holes in the snout bones suggest that it may have had whiskers, a mammalian characteristic. Its teeth were also similar to those of mammals. The skull was about 1. 5 inches long. Fossils have been found in South
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