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Mollusks from the upper Shackleton Limestone (Cambrian Series 2), Central Transantarctic Mountains, East Antarctica
Swedish Museum of Natural History, Department of Paleobiology.ORCID iD: 0000-0001-7366-7680
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2019 (English)In: Journal of Paleontology, ISSN 0022-3360, E-ISSN 1937-2337, Vol. 93, no 3, p. 437-459Article in journal (Refereed) Published
Abstract [en]

An assemblage of Cambrian Series 2, Stages 3–4, conchiferan mollusks from the Shackleton Limestone, Transantarctic Mountains, East Antarctica, is formally described and illustrated. The fauna includes one bivalve, one macromollusk, and 10 micromollusks, including the first description of the species Xinjispira simplex Zhou and Xiao, 1984 outside North China. The new fauna shows some similarity to previously described micromollusks from lower Cambrian glacial erratics from the Antarctic Peninsula. The fauna, mainly composed of steinkerns, is relatively low diversity, but the presence of diagnostic taxa, including helcionelloid Davidonia rostrata (Zhou and Xiao, 1984), bivalve Pojetaia runnegari Jell, 1980, cambroclavid Cambroclavus absonus Conway Morris in Bengtson et al., 1990, and bradoriid Spinospitella coronata Skovsted et al., 2006, as well as the botsfordiid brachiopod Schizopholis yorkensis (Ushatinskaya and Holmer in Gravestock et al., 2001), in the overlying Holyoake Formation correlates the succession to the Dailyatia odyssei Zone (Cambrian Stages 3–4) in South Australia

Place, publisher, year, edition, pages
2019. Vol. 93, no 3, p. 437-459
National Category
Geology
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-3372DOI: 10.1017/jpa.2018.84OAI: oai:DiVA.org:nrm-3372DiVA, id: diva2:1370057
Funder
Swedish Research Council, VR 2009-4395, 2010-6176, 2012-1658,Swedish Polar Research Secretariat, RFI PolarAvailable from: 2019-11-13 Created: 2019-11-13 Last updated: 2019-11-13Bibliographically approved

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