Camerata
plural noun
Cam·er·a·ta
ˌkaməˈrätə,
-ˈā-
: the largest order of crinoids including all Paleozoic species that have the lower brachial plates included in the cup and the mouth and food grooves closed
Word History
Etymology
New Latin, from Latin, neuter plural of cameratus, past participle of camerare to arch, from camera arched roof