approximately 49-48 million years ago

84 to 66 million years ago in what is now Argentina

similar to the function of claws in some modern insectivorous mammals

all of them small

Eryops megacephalus was a giant amphibian that lived during the Permian period

Zuul crurivastator Monolophosaurus approximately 49-48 million years agoZuul crurivastator is a herbivorous ankylosaurine dinosaur from the Campanian stage of the Late Cretaceous (approximately 76. 275. 2 million years ago) that has provided valuable morphological and paleoecological data thanks to an exceptionally complete specimen recently described. It was found in the Judith River Formation in northern Montana (USA), and its extraordinary preservation includes a complete skull, caudal club, osteoderms in situ, keratin