Litoceras profilbekkenense Kröger & Pohle 2021, sp. nov. ...
Litoceras profilbekkenense sp. nov. urn:lsid:zoobank.org:act: 847E0904-7D05-46EF-81F3-EDA8A5F740A7 Figs 44B, 46–47 Diagnosis Litoceras with relatively slender, rapidly enlarging conch, with WER of 2.3; with reniform, depressed conch cross section and WWI of ca 1.3; ornamented with fine growth lines...
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Zenodo
2021
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| Online Access: | https://dx.doi.org/10.5281/zenodo.5795817 https://zenodo.org/doi/10.5281/zenodo.5795817 |
| Summary: | Litoceras profilbekkenense sp. nov. urn:lsid:zoobank.org:act: 847E0904-7D05-46EF-81F3-EDA8A5F740A7 Figs 44B, 46–47 Diagnosis Litoceras with relatively slender, rapidly enlarging conch, with WER of 2.3; with reniform, depressed conch cross section and WWI of ca 1.3; ornamented with fine growth lines which run obliquely across the flanks and form broad hyponomic sinus; the siphuncle is relatively wide, ca 0.25 of apertural height, and at a distance of 0.25 of the corresponding apertural height from the dorsum. Etymology Referring to the Profilbekken River near the type locality. Type material Holotype Specimen FMNH-P30329; by monotypy. Type locality and horizon From Profilstranda section, Ny Friesland, Svalbard, PO 131, 128 m above base of Olenidsletta Member, Blackhillsian, Floian. Description This specimen is a tectonically distorted fragment of a phragmocone and parts of a ca 180° long body chamber with a conch diameter of 86 mm (Fig. 46). The base of the body chamber is at a conch diameter of 58 mm, where ... : 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 67-68, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422 ... |
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