A genus of extinct spiral-shelled marine snails with distinctive central umbilical features from Paleozoic seas.
Genus name from Greek eu- (well) + omphalos (navel, belly button). Named for the characteristic well-formed central opening in their shells.
Euomphalus fossils are paleontologists' time capsules—finding one tells you the sea was warm, shallow, and full of life hundreds of millions of years ago.
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