DescriptionVertebrata 002.png English: Many examples of vertebrates : Acipenser oxyrinchus, African Elephants, Tiger Shark and a River lamprey Français :...
DescriptionArsinoitherium zitteli Andrews 1906 002.png Skull of Arsinoitherium zitteli, seen from behind. boc, basioccipital; cond., condyles; exo., exoccipital;...