Lawrenceoceras ebenus Kröger & Pohle 2021, sp. nov ...
Lawrenceoceras ebenus sp. nov urn:lsid:zoobank.org:act: C148361C-5535-4AE5-8835-282F9C8C3EC3 Figs 5D–E, 6A, 7B, 8A Diagnosis Exogastrically curved conch with angle of expansion of conch width of ca 8° and slightly depressed conch cross section (rW = 1.12); ornamented with fine directly transverse st...
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Zenodo
2021
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| Online Access: | https://dx.doi.org/10.5281/zenodo.5793439 https://zenodo.org/doi/10.5281/zenodo.5793439 |
| Summary: | Lawrenceoceras ebenus sp. nov urn:lsid:zoobank.org:act: C148361C-5535-4AE5-8835-282F9C8C3EC3 Figs 5D–E, 6A, 7B, 8A Diagnosis Exogastrically curved conch with angle of expansion of conch width of ca 8° and slightly depressed conch cross section (rW = 1.12); ornamented with fine directly transverse striae and rugae. Siphuncle small, 0.1 of conch height and near conch margin. Etymology In honour to the Svalbard Husky “Ebony”, from the Latin ‘ hebenus ’, ‘ebony’. Type material Holotype Specimen FMNH-P30335; by monotypy. Type locality and horizon Profilstranda section, adjacent to Hinlopenstretet, Spitsbergen, bed Po123.3, 120.3 m above base of Olenidsletta Member, V 2a trilobite zone, Blackhillsian, Floian. Description Specimen FMNH-P30335 is a fragment of a curved phragmocone and part of a body chamber with a length of 31 mm and a conch width of 9–13.3 mm (angle of expansion ca 8°). The preserved part of the body chamber is 8 mm long. The conch surface is ornamented with fine directly transverse striae, 10–12 ... : 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 10-12, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422 ... |
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