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Astraeospongia

noun
As·​traeo·​spon·​gia | \ ¦astrē(ˌ)ōˈspənjēə, -pän-\

Definition of Astraeospongia

: a genus of saucer-shaped Silurian fossil sponges having 6-rayed stellate spicules and important as Paleozoic index fossils

History and Etymology for Astraeospongia

New Latin, from astraeo- (from Greek astraios starry, from aster-, astēr star) + -spongia

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