uw5601 - metoposaurus sp skull cast download free 3d model university wyoming libraries uwlibraries 771b507 period epoch triassic rock formation dockum grp taxonomy amphibia&gt temnospondyli&gt metoposauridae&gt genus amphibian late europe though clade includes its closest relatives has near-global spread including north america animal mostly aquatic ate fish could reach lengths 3 meters long weigh 450 kilograms these organisms have been found mass death beds presumed result evaporating water basins specimen illustrates right side clearly shows different bones scanned david sls-2