| Glenisteroceras Temporal range: late Early Ordovician | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | † Dissidocerida |
| Family: | † Troedssonellidae |
| Genus: | † Glenisteroceras Flower, 1957 |
Glenesteroceras, which is of questionable validity[ citation needed ], is based on a single specimen from the Lower Ordovician of New York state, described by Rousseau Flower, 1957.
Glenestoceras is described as being a weakly annulate orthocone with a circular cross section and large central siphuncle with slightly divergent necks, thick connecting rings, and expanded segments. Description is based on an incomplete immature phragmocone with a 5mm cross section.
