Fibrospongiae

plural noun
Fi·​bro·​spon·​gi·​ae | \ˌfībrəˈspənjēˌē, -pän-\

Definition of Fibrospongiae 

in former classifications

: an order of Porifera comprising sponges with fibrous skeletons and including all forms not placed in Calcispongiae

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History and Etymology for Fibrospongiae

New Latin, from fibr- + -spongiae

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