Published December 20, 2021
| Version v1
Taxonomic treatment
Open
Olenidslettoceras Kröger & Pohle 2021, gen. nov.
Creators
- 1. Finnish Museum of Natural History, University of Helsinki, PO Box 44, FI- 00014 Helsinki, Finland.
- 2. Paläontologisches Institut und Museum, University of Zurich, Zurich, Switzerland.
Description
Genus Olenidslettoceras gen. nov.
urn:lsid:zoobank.org:act: D66D41DD-0A41-4110-BFF7-1E014ED180FA
Type speciesOlenidslettoceras farmi gen. et sp. nov., from 120.3 m (PO 123.3) above base of Olenidsletta Member, V2a trilobite zone, Blackhillsian, Floian by original designation.
DiagnosisSlender, depressed, exogastric cyrtocones. Angle of expansion larger in apical portions. Adoral portions of mature specimens less curved and with low angle of expansion. Chambers narrowly spaced. Thin siphuncle positioned near conch margin at convex side with thick connecting rings which are tubular at the dorsal side and concave at the ventral side. Septal necks are very short, thickened, and orthochoanitic to suborthochoanitic.
ComparisonSee discussion of type species.
Notes
Published as part of Kröger, Björn & Pohle, Alexander, 2021, Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities, pp. 1-102 in European Journal of Taxonomy 783 (1) on page 74, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422
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Linked records
Additional details
Biodiversity
- Family
- Rioceratidae
- Genus
- Olenidslettoceras
- Kingdom
- Animalia
- Order
- Tetrabranchia
- Phylum
- Mollusca
- Scientific name authorship
- Kröger & Pohle
- Taxonomic status
- gen. nov.
- Taxon rank
- genus
- Taxonomic concept label
- Olenidslettoceras Kröger & Pohle, 2021