Cyrtorizoceras Hyatt, 1900
|
publication ID |
https://doi.org/10.5852/ejt.2025.978.2801 |
|
publication LSID |
lsid:zoobank.org:pub:422E6F06-B4C8-4840-854C-811145D88B32 |
|
DOI |
https://doi.org/10.5281/zenodo.14988533 |
|
persistent identifier |
https://treatment.plazi.org/id/93268783-9625-7075-FDA0-FCDCFD96FB03 |
|
treatment provided by |
Plazi (2025-03-07 10:46:31, last updated 2025-03-07 11:32:00) |
|
scientific name |
Cyrtorizoceras Hyatt, 1900 |
| status |
|
Genus Cyrtorizoceras Hyatt, 1900 View in CoL
Type species
Cyrtoceras minneapolis Clarke, 1897 , from Minneapolis, Minnesota, USA, Platteville Formation, Black River Group, Sandbian; by original designation.
Diagnosis
Compressed cyrtocones; dorsal and ventral profiles diverging constantly adorally; sides converging slightly over mature body chamber; aperture with deep hyponomic sinus; nearly smooth or ornamented with transverse costae; siphuncle subventral, slender; segments slightly expanded, probably empty. (Adopted from Sweet 1964b.)
Clarke J. M. 1897. The Lower Silurian cephalopoda of Minnesota. Minnesota Geology and Natural History Survey 3 (2): 761-812.
Hyatt A. 1900. Cephalopoda. In: Zittel K. A. V. (ed.) Textbook of Paleontology, 1. Second Edition, Translated and Edited by C. R. Eastmann: 502-592. Macmillan and Co, London.
Sweet W. C. 1964 b. Oncocerida. In: Moore R. C. (ed.) Treatise on Invertebrate Paleontology, Part K, Mollusca 3: K 277 - K 319. University of Kansas Press, Boulder, CO.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
|
Kingdom |
|
|
Phylum |
|
|
Class |
|
|
Order |
|
|
Family |