actinocrinite
noun
ac·ti·no·cri·nite
ˌak-tə-(ˌ)nō-ˈkrī-ˌnīt
plural -s
: a fossil crinoid of Actinocrinus or a related genus
Word History
Etymology
probably from French, from New Latin Actinocrinus + French -ite
First Known Use
1839, in the meaning defined above