MolluscaBase taxon details
Protocycloceras Hyatt, 1900 †
1772006 (urn:lsid:marinespecies.org:taxname:1772006)
accepted
Genus
Orthoceras lamarcki Billings, 1859 † accepted as Protocycloceras lamarcki (Billings, 1859) † (type by original designation)
Rhabdocycloceras Zhuravleva, 1994 † · unaccepted > junior subjective synonym
- Species Protocycloceras lamarcki (Billings, 1859) †
- Species Protocycloceras minor Kröger & Pohle, 2021 †
- Species Protocycloceras whitfieldi Ruedemann, 1906 † accepted as Protocycloceras lamarcki (Billings, 1859) † (unaccepted > junior subjective synonym)
- Species Protocycloceras abnorme Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras affine Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras arkansasense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras doniphonense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras geronticum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras levisense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras manitouense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras mendax (Salter, 1859) † (uncertain > unassessed)
- Species Protocycloceras odenvillense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras philipsburgense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras repens (Billings, 1865) † (uncertain > unassessed)
- Species Protocycloceras smithvillense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (uncertain > unassessed)
- Species Protocycloceras xerxes (Billings, 1865) † (uncertain > unassessed)
marine, brackish, fresh, terrestrial
fossil only
neuter
Hyatt, A. (1900). Cephalopoda. In: Zittel, K. A. V.; Eastman, C. R. (Eds). <em>Text-book of paleontology by Karl A. von Zittel [translated from German to English and edited by C. R. Eastman]. Vol. 1.</em> pp. 502-604. Macmillan, London., available online at https://www.biodiversitylibrary.org/page/17392244
page(s): 518 [details]
page(s): 518 [details]
MolluscaBase eds. (2025). MolluscaBase. Protocycloceras Hyatt, 1900 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1772006 on 2025-09-11
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
original description
Hyatt, A. (1900). Cephalopoda. In: Zittel, K. A. V.; Eastman, C. R. (Eds). <em>Text-book of paleontology by Karl A. von Zittel [translated from German to English and edited by C. R. Eastman]. Vol. 1.</em> pp. 502-604. Macmillan, London., available online at https://www.biodiversitylibrary.org/page/17392244
page(s): 518 [details]
original description (of Rhabdocycloceras Zhuravleva, 1994 †) Zhuravleva, F. A. (1994). The order Dissodocerida (Cephalopoda). <em>Paleontological Journal.</em> 28(1): 115-133. [details]
page(s): 518 [details]
original description (of Rhabdocycloceras Zhuravleva, 1994 †) Zhuravleva, F. A. (1994). The order Dissodocerida (Cephalopoda). <em>Paleontological Journal.</em> 28(1): 115-133. [details]
