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Taxonomy, morphology, shell structure and early ontogeny of Pelmanotreta nom. nov. from the lower Cambrian of Siberia
Swedish Museum of Natural History, Department of Paleobiology.ORCID iD: 0000-0001-7366-7680
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2015 (English)In: GFF, ISSN 1103-5897, E-ISSN 2000-0863, Vol. 137, no 1, 1-8 p.Article in journal (Refereed) Published
Abstract [en]

The new generic name Pelmanotreta is proposed under the provisions of the International Code of Zoological Nomenclature (ICZN) to replace Cryptotreta Pelman, 1977 (Brachiopoda), a junior homonym of Cryptotreta Blanc & Foote, 1961 (Arthropoda). This poorly known brachiopod genus and its type and only species, Pelmanotreta neguertchenensis (Pelman, 1977), from the early Cambrian of Siberia is redescribed. The family-level taxonomy of Pelmanotreta and other “cryptotretid” brachiopods is uncertain. In Pelmanotreta, dorsal valves vastly outnumber ventral valves in all collections but new specimens of the poorly known ventral valve reveal a possibly septate and poorly mineralized apical region. A prismatic hexagonal shell structure comparable to that of Salanygolina is described. P. neguertchenensis preserves the earliest known record of a larval shell in brachiopods.

Place, publisher, year, edition, pages
2015. Vol. 137, no 1, 1-8 p.
Keyword [en]
early Cambrian; Brachiopoda; Siberia; systematics; shell structure
National Category
Natural Sciences
Research subject
The changing Earth
Identifiers
URN: urn:nbn:se:nrm:diva-1813DOI: 10.1080/11035897.2014.982700OAI: oai:DiVA.org:nrm-1813DiVA: diva2:954687
Funder
Swedish Research Council, VR 2009-4395, 2012-1658
Available from: 2016-08-23 Created: 2016-08-23 Last updated: 2016-10-17Bibliographically approved

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