Tropidoleptus
noun
Trop·i·do·lep·tus
ˌträpədōˈleptəs
: a genus of articulate brachiopods widely distributed in Devonian formations where they are important index fossils and characterized by a concavo-convex shell wide at the hinge and with broad rounded ribs
Word History
Etymology
New Latin, from tropido- (from Greek tropid-, tropis ship's keel) + Greek leptos small; akin to Greek tropos turn