Glenisteroceras
Glenisteroceras Temporal range: late Early Ordovician | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | Nautiloidea |
Order: | Orthocerida |
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.
References
- Walter A Sweet, 1964. Nautiloidea - Orthocerida, Treatise on Invertebrate Paleontology, Part K, incl Nautiloidea. Geological Society of America and University of Kansas Press.
- v
- t
- e