Hinlopoceras venti Kröger & Pohle 2021, gen. et sp. nov. ...

• Main Authors: Kröger, Björn, Pohle, Alexander
• Format: Text
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Cephalopoda; Tetrabranchia; Rioceratidae; Hinlopoceras; Hinlopoceras venti; Hinlopenstretet; Ny Friesland; Spitsbergen
• Online Access: https://dx.doi.org/10.5281/zenodo.5795793; https://zenodo.org/doi/10.5281/zenodo.5795793

Hinlopoceras venti gen. et sp. nov. urn:lsid:zoobank.org:act: BFD524AB-81E0-4B03-9467-42F127845E61 Figs 17G–H, J, 18, 19A Diagnosis Hinlopoceras gen. nov. with cross section changing from circular in juvenile growth stage to slightly compressed (rW ≈ 0.8) in adult specimen; angle of expansion decreases during growth from ca 14° to 11°; ornamented with distinct irregularly spaced directly transverse lirae which are more pronounced during later growth stages. Siphuncle narrow with rSD = 0.12, strictly marginally positioned and with loxochoanitic septal necks. Etymology From Latin ‘ ventus ’, ‘wind’; referring to its wave-like faint transversely lirate ornamentation. Type material Holotype Specimen FMNH-P30266. Paratypes Two additional specimens from the type locality: FMNH-P30267 from bed PO 7.5 and FMNH-P30262 from bed PO 07, 4.5 m and 4.0 m above the base of Olenidsletta Member, V1 a trilobite zone, Blackhillsian, Floian. Type locality and horizon From Profilstranda section, adjacent Hinlopenstretet, ... : 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 pages 26-29, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422 ...