Promicroceras
From Wikipedia, the free encyclopedia
| Promicroceras Temporal range: | |
|---|---|
 | |
| Promicroceras pyritosum | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Eoderoceratidae |
| Subfamily: | †Eoderoceratinae |
| Genus: | †Promicroceras Spath, 1925 |
| Species[2] | |
| |
Promicroceras is an extinct ammonite genus from the upper Sinemurian (Lower Jurassic)[1] of Europe, named by Leonard Spath in 1925. Promicroceras is included in the family Eoderoceratidae, which is part of the ammonitid superfamily Eoderoceratoidea.
Shells are evolute with an open umbilicus; strongly ribbed, ribs flattened on the venter, and with small spines without distinct tubercles.
