Nyfrieslandoceras Kröger & Pohle 2021, gen. nov.

Genus Nyfrieslandoceras gen. nov. urn:lsid:zoobank.org:act: 46CA8144-915D-4392-90B9-7F123D2BE411 Type species Nyfrieslandoceras bassleroceroides gen. et sp. nov. Diagnosis Slightly curved slender conch with compressed conch cross section; ornamented with distinct irregularly spaced growth lines, whi...

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Bibliographic Details
Main Authors: Kröger, Björn, Pohle, Alexander
Format: Other/Unknown Material
Language:unknown
Published: Zenodo 2021
Subjects:
Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Tetrabranchia
Rioceratidae
Nyfrieslandoceras
Ny Friesland
Spitsbergen
Online Access:https://doi.org/10.5281/zenodo.5793604
Description
Summary:Genus Nyfrieslandoceras gen. nov. urn:lsid:zoobank.org:act: 46CA8144-915D-4392-90B9-7F123D2BE411 Type species Nyfrieslandoceras bassleroceroides gen. et sp. nov. Diagnosis Slightly curved slender conch with compressed conch cross section; ornamented with distinct irregularly spaced growth lines, which form hyponomic sinus at convex side of conch curvature; chambers are narrowly spaced, ca nine per distance similar to corresponding conch height; sutures form broad lateral lobe; siphuncle thin and nearly marginal at convex side of conch curvature, with slightly expanded segments; septal necks short, thickened achoanitic. 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 72, DOI:10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422

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