Hinlopoceras tempestatis Kröger & Pohle 2021, gen. et sp. nov. ...
Hinlopoceras tempestatis gen. et sp. nov. urn:lsid:zoobank.org:act: 8D1729CE-0726-42C1-85C9-E2AE55BDC1C6 Figs 17D–F, I, 18, 19B Diagnosis Hinlopoceras gen. nov. with cross section changing from circular in juvenile growth stage to ca 0.9 in adult specimen; angle of expansion decreases during growth...
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Zenodo
2021
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| Online Access: | https://dx.doi.org/10.5281/zenodo.5793494 https://zenodo.org/doi/10.5281/zenodo.5793494 |
| Summary: | Hinlopoceras tempestatis gen. et sp. nov. urn:lsid:zoobank.org:act: 8D1729CE-0726-42C1-85C9-E2AE55BDC1C6 Figs 17D–F, I, 18, 19B Diagnosis Hinlopoceras gen. nov. with cross section changing from circular in juvenile growth stage to ca 0.9 in adult specimen; angle of expansion decreases during growth from ca 14° to 10°; ornamented with distinct directly transverse, irregularly spaced lirae, 1.5–3 lirae occur per millimeter, and with weak, directly transverse annulations in latest growth stages. Siphuncle narrow with diameter 0.15 of corresponding conch height, strictly marginally positioned. Etymology From the Latin ‘ tempestas ’, ‘storm’; referring to its wave-like distinct transversely lirate ornamentation. Type material Holotype Specimen FMNH-P30360. Paratypes Fifteen specimens (FMNH-P30450, P30357 to P30359, P30260 to P30269, P30479) all are from type locality and type horizon. Type locality and horizon From Profilstranda section, adjacent to Hinlopenstretet, Spistbergen, from bed PO 07, 4.0 m above base ... : 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 24-26, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422 ... |
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