Archegosaurus
noun
Ar·che·go·sau·rus
ärˌkēgōˈsȯrəs
: a genus of extinct long-snouted aquatic labyrinthodont amphibians from the Lower Permian of Europe
Word History
Etymology
New Latin, from Greek archēgos primary, originating (from archē beginning + -ēgos, akin to Greek agein to lead, drive) + New Latin -saurus