| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Cyclostomiceras cassinense
Taxonomy
Gomphoceras cassinense was named by Whitfield (1886). It is not extant. It is the type species of Cyclostomiceras.
It was recombined as Cyclostomiceras cassinense by Hyatt (1900), Ruedemann (1906), Ulrich et al. (1943), King (1998) and Kröger and Landing (2009).
It was recombined as Cyclostomiceras cassinense by Hyatt (1900), Ruedemann (1906), Ulrich et al. (1943), King (1998) and Kröger and Landing (2009).
Synonymy list
| Year | Name and author |
|---|---|
| 1886 | Gomphoceras cassinense Whitfield p. 322 figs. pl. 29, figs. 1–3 |
| 1900 | Cyclostomiceras cassinense Hyatt p. 530 |
| 1906 | Cyclostomiceras cassinense Ruedemann p. 501 figs. pl. 37, figs. 1–3, pl. 38, figs. 5–6, text-fig. 56 |
| 1943 | Cyclostomiceras cassinense Ulrich et al. |
| 1998 | Cyclostomiceras cassinense King p. 339 |
| 2009 | Cyclostomiceras cassinense Kröger and Landing |
Is something missing? Join the Paleobiology Database and enter the data
|
|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Cyclostomiceras cassinense Whitfield 1886
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Hyatt 1900 | Slender, short, exogastric orthoceracones and. eyrtoceracones, circular or compressed in section, Living chamber as compared with camerated
part longer and larger than in most forms, less contracted, and with open aperture in gerontic stage. Type C. (Pot.) cassinense, Whitt. sp. Ordovician to Devonian. | |
| A. H. King 1998 | Diagnosis. Gomphoceroid, breviconic orthocones with circular to depressed section; phragmocone expanding forward fairly rapidly, anterior half of mature body-chamber slightly contracted. Sutures and growth lines straight and directly transverse. Siphuncle small, about 15 per cent. of conch diameter, ventral in position but not marginal. Septal necks orthochoanitic, connecting rings thick and layered. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cassinian | USA (Vermont) | Cyclostomiceras cassinense (42793) | |
| Cassinian | USA (New York) | Cyclostomiceras cassinense (90082) | |
| Cassinian | Canada (Quebec) | Cyclostomiceras cassinense (99224) | |
| Caradoc | USA (Georgia) | Cyclostomiceras cassinense (33182 33186 33188) |