Astylospongia
noun
Asty·lo·spon·gia
¦āˌstīləˈspənjēə,
-pän-
: a genus of small pear-shaped siliceous fossil sponges including important index fossils occurring in Middle Silurian strata
Word History
Etymology
New Latin, from astyl-, astylo- (from a- entry 2 + styl-) + -spongia