Hesperoceras
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| Hesperoceras Temporal range: L Mississippian | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | †Orthocerida |
| Family: | †Orthoceratidae |
| Genus: | †Hesperoceras Miller & Youngquist, 1947 |
Hesperoceras is an orthocerid cephalopod belonging to the subfamily Michelinoceratinae which comes from the lower Mississippian of New Mexico.
Hesperoceras has a straight, orthoconic, shell with a subrectangular cross section. The sutures are straight and transverse on the narrow sides but form broad rounded lobes on the wide sides, and the siphuncle is small and central.