Olenidslettoceras, Kröger & Pohle, 2021

Kröger, Björn & Pohle, Alexander, 2021, Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities, European Journal of Taxonomy 783 (1), pp. 1-102 : 74

publication ID

https://doi.org/ 10.5852/ejt.2021.783.1601

publication LSID

lsid:zoobank.org:pub:071EAD63-05ED-4D6C-AC45-8719E6D79E0B

DOI

https://doi.org/10.5281/zenodo.5793608

persistent identifier

https://treatment.plazi.org/id/D66D41DD-0A41-4110-BFF7-1E014ED180FA

taxon LSID

lsid:zoobank.org:act:D66D41DD-0A41-4110-BFF7-1E014ED180FA

treatment provided by

Felipe

scientific name

Olenidslettoceras
status

gen. nov.

Genus Olenidslettoceras gen. nov.

urn:lsid:zoobank.org:act:D66D41DD-0A41-4110-BFF7-1E014ED180FA

Type species

Olenidslettoceras 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.

Diagnosis

Slender, 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.

Comparison

See discussion of type species.

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