Rhynchonellata - Athyridida - Athyrididae

Full reference: W. H. Easton, J. E. Sanders, J. B. Knight and A. K. Miller. 1958. Mississippian fauna in northwestern Sonora, Mexico. Smithsonian Miscellaneous Collections 119(3):1-87

Belongs to Composita according to W. H. Easton et al. 1958

Sister taxa: Athyris (Composita) indosinensis, Athyris (Composita) semirostrata, Composita affinis, Composita apheles, Composita apsidata, Composita argentea, Composita bamberi, Composita biforma, Composita bucculenta, Composita costata, Composita cracens, Composita crassa, Composita depressa, Composita discina, Composita elongata, Composita emarginata, Composita enormis, Composita gigantea, Composita girtyi, Composita globosa, Composita grandis, Composita hapsida, Composita huagongensis, Composita idahoensis, Composita imbricata, Composita insulcata, Composita jogensis, Composita laevis, Composita lewisensis, Composita magnicarina, Composita mexicana, Composita minuscula, Composita mira, Composita misriensis, Composita nucella, Composita ovata, Composita parasulcata, Composita pikensis, Composita pilula, Composita plana, Composita prospera, Composita pyriformis, Composita quadrirotunda, Composita quantilla, Composita rotunda, Composita sigma, Composita stalagmium, Composita strongyle, Composita subcircularis, Composita subquadrata, Composita subtilita, Composita sulcata, Composita tareica, Composita tetralobata, Composita tobaensis, Composita trinuclea

Type specimen: USNM 127930a

Ecology: stationary low-level epifaunal suspension feeder

Distribution: found only at Hill, 2.2 km WNW of Bisani (Carboniferous of Mexico)

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Specimen images are retrieved through the ePANDDA API.