Definition of Astraeospongia
:a genus of saucer-shaped Silurian fossil sponges having 6-rayed stellate spicules and important as Paleozoic index fossils
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Astraeospongia
noun
As·traeo·spon·gia
\
¦astrē(ˌ)ōˈspənjēə
,
-pän-
\
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Origin and Etymology of astraeospongia
New Latin, from astraeo- (from Greek astraios starry, from aster-, astēr star) + -spongia
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