Glabrocingulum parvum Foster & Danise & Twitchett 2017, sp. nov. ...
Glabrocingulum parvum sp. nov. (Fig. 11) Diagnosis. Moderately low-spired shells with faint spiral ornament without sutural nodes. Broad selenizone in relation to whorl height with sharp edges. Deeply concave selenizone. Funicle absent or weakly formed. Holotype. Dextral shell, NHMUK PI MG 1531; hei...
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| Format: | Text |
| Language: | unknown |
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Zenodo
2016
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| Online Access: | https://dx.doi.org/10.5281/zenodo.10883123 https://zenodo.org/doi/10.5281/zenodo.10883123 |
| Summary: | Glabrocingulum parvum sp. nov. (Fig. 11) Diagnosis. Moderately low-spired shells with faint spiral ornament without sutural nodes. Broad selenizone in relation to whorl height with sharp edges. Deeply concave selenizone. Funicle absent or weakly formed. Holotype. Dextral shell, NHMUK PI MG 1531; height = 2.5 mm, width = 3.0 mm. Paratype. Dextral shell, NHMUK PI MG 1518; height = 2.0 mm, width = 2.0 mm. Other material. Ten specimens from LD-04 (NHMUK PI MG 1468; NHMUK PI MG 1471; NHMUK PI MG 1495; NHMUK PI MG 1500–1501; NHMUK PI MG 1513–1515; NHMUK PE PEI 5519–5520), and 14 specimens from LD-05 (NHMUK PI MG 1476; NHMUK PI MG 1482; NHMUK PI MG 1484; NHMUK PI MG 1493; NHMUK PI MG 1530; NHMUK PE PEI 5493; NHMUK PE PEI 5502; NHMUK PE PEI 5514). Fourteen juvenile shells from LD-04 (NHMUK PI MG 1516–1517; NHMUK PI MG 1519–1529; NHMUK PE PEI 5486). Derivation of name. Latin, parvum (small), referring to its small size. Description. Shell is dextral, turbiniform, low-spired, with simple sutures. The upper whorl ... : Published as part of Foster, William J., Danise, Silvia & Twitchett, Richard J., 2017, A silicified Early Triassic marine assemblage from Svalbard, pp. 851-877 in Journal of Systematic Palaeontology 15 (10) on pages 866-867, DOI: 10.1080/14772019.2016.1245680, http://zenodo.org/record/10883052 ... |
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