Cyathophylloid
Cyathophylloid (s?`?-th?-f?l"loid) , adjective
[New Latin cyathophyllum, from Greek ky`aqos a cup + fy`llon a leaf.]
(Paleontology) Like, or pertaining to, the family Cyathophyllida.
Cyathophylloid , noun
(Paleontology) A fossil coral of the family Cyathophyllida; sometimes extended to fossil corals of other related families belonging to the group Rugosa; -- also called cup corals. Thay are found in paleozoic rocks.