Description
Euomphalus latus Gastropod
- Euomphalus latus
- Mississippian Age
- Humboldt Oolitic Limestone
- Humboldt, Iowa
- Specimen measures 4.74″ wide at the widest point
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Euomphalus is a genus of fossil marine gastropods known to have lived from the Silurian to the Middle Permian. Euomphalus is characterized by a closely coiled shell with a depressed to slightly elevated spire and a channel-bearing angulation (a selenizone) on the upper surface of the whorls.
The Mississippian is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earlier of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2 million years
Gastropods are the largest and most diverse class of mollusks, with over 40,000 known species and many more undiscovered ones. Most shelled gastropods have a one piece shell (with exceptional bivalved gastropods), typically coiled or spiraled, at least in the larval stage. This coiled shell usually opens on the right-hand side (as viewed with the shell apex pointing upward).
