Chlorostoma (Omphalius) Philippi 1847 (top snail)

Gastropoda - Trochoidea - Trochidae

Alternative spellings: Omphalia, Omphalius, Tegula (Omphalius)

Parent taxon: Chlorostoma according to J. R. Gardner 1947

See also Addicott 1970, Cleevely and Morris 1988 and Sepkoski 2002

Sister taxa: Chlorostoma argyrostoma, Chlorostoma arnoldi, Chlorostoma atrum, Chlorostoma aureotincta, Chlorostoma austropacifica, Chlorostoma brunnea, Chlorostoma chilena, Chlorostoma costaricensis, Chlorostoma euryomphalum, Chlorostoma funebrale, Chlorostoma gallina, Chlorostoma ignota, Chlorostoma luctuosum, Chlorostoma matanzensis, Chlorostoma montereyi, Chlorostoma nautiloides, Chlorostoma pacificum, Chlorostoma quipua, Tegula (Chlorastoma) danvillensis, Tegula (Chlorostoma) dubiosa, Tegula (Chlorostoma) ligulata, Tegula (Chlorostoma) ligulatus, Tegula (Chlorostoma) malibuensis, Tegula (Chlorostoma) nashi, Tegula (Chlorostoma) pulcella

Subtaxa: Tegula (Omphalius) dalli Tegula (Omphalius) laevis

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Ecology: epifaunal grazer

Distribution:

• Quaternary of Japan (1 collection)

• Pliocene of Jamaica (1), Japan (1), United States (4: Florida)

• Miocene of United States (10: California, Florida, Georgia)

• Eocene of Mexico (1)

Total: 18 collections including 20 occurrences

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