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Altaethyrella (Brachiopoda) from the Late Ordovician of the Tarim Basin, Northwest China, and its significance

Published online by Cambridge University Press:  06 July 2018

Colin D. Sproat
Affiliation:
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China210008; 〈[email protected]〉, 〈[email protected]
Renbin Zhan
Affiliation:
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China210008; 〈[email protected]〉, 〈[email protected] University of the Chinese Academy of Sciences, Beijing, China100049

Abstract

Altaethyrella tarimensis, a new species of rhynchonellide brachiopod, is described from the late Katian (Late Ordovician) Hadabulaktag Formation in the Kuruktag region of Xinjiang, Northwest China on the northeastern edge of the Tarim Basin. Serial sections of the shell clearly show no dorsal median septum or septalium in the dorsal valve, and no spiralia or atrypide-style crura. Like other species of the genus, A. tarimensis n. sp. exhibits a high degree of intraspecific variation, including variations in shell shape and size, number of ribs in the sulcus at the anterior, and degree of asymmetry. The discovery of Altaethyrella in Tarim has important paleogeographic implications, indicating a close relationship between the Late Ordovician brachiopod faunas of Tarim and those of the Kazakh terranes and North and South China paleoplates, supporting a recently published paleogeographic projection that places Tarim near the Chu-Ili terrane during the Late Ordovician. The abundant large biconvex shells of A. tarimensis n. sp. would have provided a firm substrate for encrusting filter feeders like bryozoans to establish on the Kuruktag Platform.

UUID: http://zoobank.org/df8843cd-4db0-48e7-ba03-bf0ce81c4f01

Type
Articles
Copyright
Copyright © 2018, The Paleontological Society 

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References

Cocks, L.R.M., and Torsvik, T.H., 2013, The dynamic evolution of the Palaeozoic geography of eastern Asia: Earth-Science Reviews, v. 117, p. 4079.Google Scholar
Cooper, G.A., 1956, Chazyan and related brachiopods: Smithsonian Miscellaneous Collections, v. 127, 1245 p.Google Scholar
Fu, L.P., 1982, Brachiopoda, in Xi’an Institute of Geology and Mineral Resources, ed., Paleontological Atlas of Northwest China, Shaanxi-Gansu- Ningxia Volume, 1: Precambrian and Early Paleozoic: Beijing, Geological Publishing House, p. 95–178 [in Chinese].Google Scholar
Hall, J., 1847, Palaeontology of New York, Volume 1: Descriptions of the Organic Remains of the Lower Division of the New-York System: New York State Geological Survey, 338 p.Google Scholar
Hammer, Ø., Harper, D.A.T., and Ryan, P.D., 2001, PAST: Paleontological statistics software package for education and data analysis: Palaeontologia Electronica, v. 4, 9 p. http://palaeo-electronica.org/2001_1/past/issue1_01.htm.Google Scholar
Harper, D.A.T., Rasmussen, C.M.Ø., Liljeroth, M., Blodgett, R.B., Candela, Y., Jin, J., Percival, I.G., Rong, J.-Y., Villas, E., and Zhan, R.-B., 2013, Chapter 11: Biodiversity, biogeography, and phylogeography of Ordovician rhynchonelliform brachiopods, in Harper, D.A.T., and Servais, T., eds., Early Palaeozoic Biogeography and Palaeogeography, Geological Society: London, Memoirs, v. 38, p. 127144.Google Scholar
Kuhn, O., 1949. Lehrbuch der Paläozoologie. E. Schweizerbartsche Verlagsbuchhandlung, Stuttgart, 326 pp. [in German].Google Scholar
Kulkov, N.P., and Severgina, L.G., 1989, Stratigrafiya i brachiopody ordovika i nizhnego silura Gornogo Altaya [Stratigraphy and brachiopods of the Ordovician and Lower Silurian of the Gorny Altai]: Akademii Nauk SSSR, Trudy Instituta Geologii i Geofiziki Sibirskogo Otdeleniya, v. 717, p. 1223. [in Russian].Google Scholar
Laurie, J.R., 1991, Articulate brachiopods from the Ordovician and Lower Silurian of Tasmania: Memoirs of the Association of Australasian Palaeontologists, v. 11, p. 1106.Google Scholar
Li, R., and Zhan, R., 1998, Heterochrony of Late Ordovician Altaethyrella zhejiangensis (Wang) from Zhejian-Jiangxi border region: Acta Palaeontologica Sinica, v. 37, p. 108120.Google Scholar
Liu, D., and Fang, R., 1990, Brachiopods, in Oil Exploration Company of Southern Xinjiang, Xinjiang Petroleum, and Institute of Petroleum and Geology, Yunan-Guizhou-Guangxi Oil Exploration Bureau, eds., Sinian-Permian Stratigraphy and Paleontology of the Tarim Basin (1), Kuruktag volume: Nanjing, Nanjing University Press, p. 139–142 [in Chinese].Google Scholar
Liu, D., Xu, H., and Liang, W., 1983, Phylum Brachiopoda, in Nanjing Institute of Geology and Mineral Resources, Chinese Academy of Geological Sciences, ed., Palaeontological Atlas of East China (1), Early Palaeozoic Volume: Beijing, Geological Publishing House, p. 254286. [in Chinese].Google Scholar
Misius, P.P., 1986, Ordovician brachiopods of northern Kirgizia: Frunze, Ilim, p. 1254. [in Russian].Google Scholar
Nikiforova, O.I., and Popov, L.E., 1981, Novyie dannyie ob ordovikskikh rinkhonellidakh Kazakhstana i Srednei Azii [New data on Ordovician rhynchonellides from Kazakhstan and Central Asia]: Paleontologicheskii Zhurnal, 1981, v. 1, p. 5467. [in Russian].Google Scholar
Nikitin, I.F., Popov, L.E., and Bassett, M.G., 2003, Late Ordovician brachiopods from the Selety River basin, north Central Kazakhstan: Acta Palaeontologica Polonica, v. 48, p. 3954.Google Scholar
Nikitin, I.F., Popov, L.E., and Bassett, M.G., 2006, Late Ordovician rhynchonelliformean brachiopods of north-eastern Central Kazakhstan, in Bassett, M.G., and Deisler, V.K., eds., Studies in Palaeozoic Palaeontology: National Museum of Wales Geological Series, Cardiff, no., 25, p. 223294.Google Scholar
Percival, I.G., 1991, Late Ordovician articulate brachiopods from central New South Wales: Memoirs of the Association of Australasian Palaeontologists, v. 11, p. 107177.Google Scholar
Popov, L.E., and Cocks, L.R.M., 2006, Late Ordovician brachiopods from the Dulankara Formation of the Chu-Ili Range, Kazakhstan: their systematics, palaeoecology and palaeobiogeography: Palaeontology, v. 49, p. 247283.Google Scholar
Popov, L.E., and Cocks, L.R.M., 2017, Late Ordovician palaeogeography and the positions of the Kazakh terranes through analysis of their brachiopod faunas: Acta Geologica Polonica, v. 67, p. 323380.Google Scholar
Popov, L.E., Nikitin, I.F., and Cocks, L.R.M., 2000, Late Ordovician brachiopods from the Otar Member of the Chu-Ili Range, South Kazakhstan: Palaeontology, v. 43, p. 833870.Google Scholar
Rasmussen, C.M.Ø., 2014, Phylogeography of Ordovician–Silurian rhynchonelliformean brachiopods: tracking higher order distributional patterns, radiations and extinctions in 4D: GFF, v. 136, p. 223228.Google Scholar
Rudwick, M.J.S., 1970, Living and Fossil Brachiopods: London, Hutchinson and Co, 199 p.Google Scholar
Rukavishnikova, T.B., 1956, Brakhiopody ordovika Chu-Iliiskikh gor [Ordovician brachiopods of the Chu-Ili Range]: Akademii Nauk SSSR, Trudy Geologicheskogo Instituta, v. 1, p. 105168.Google Scholar
Savage, N.M., 2002a, Rhynchonellida (part), in Kaesler, R.L., ed., Treatise on Invertebrate Paleontology, Part H: Brachiopoda (revised): Boulder, Colorado and Lawrence Kansas, Geological Society of America and The University of Kansas, v. 6, p. 27032726.Google Scholar
Savage, N.M., 2002b, Ancistrorhynchoidea, in Kaesler, R.L., ed., Treatise on Invertebrate Paleontology, Part H: Brachiopoda (revised): Boulder, Colorado and Lawrence Kansas, Geological Society of America and The University of Kansas, v. 4, p. 10411046.Google Scholar
Severgina, L.G., 1978, Brakhiopody i stratigrafiya verkhnego ordovika Gornogo Altaia, Salaira i Gornoi Shorii [Brachiopods and stratigraphy of the Upper Ordovician of mountainous Altai Region, Salair and mountainous Shoriia]: Akademiia Nauk SSSR, Sibirskoe Otdelenie, Institut Geologii i Geofiziki (IGIG), Trudy, v. 405, p. 341. [in Russian].Google Scholar
Sproat, C.D., and Jin, J., 2017, Paleobiogeography of the early Late Ordovician “Trentonian” (latest Sandbian to middle Katian) brachiopod fauna during a major marine transgression and colonization of the epicontinental seas in Laurentia: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 487, p. 105117.Google Scholar
Sproat, C.D., Sohrabi, A., and Jin, J., 2014, The early evolution of Middle–Late Ordovician rhynchonellide brachiopods in Laurentia: Memoirs of the Association of Australasian Palaeontologists, v. 45, p. 153165.Google Scholar
Wang, Y., and Jin, Y., 1964, Brachiopods, in Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, ed., Index Fossils of South China: Beijing, Science Press, 46 p. [in Chinese].Google Scholar
Zhan, R., and Cocks, L.R.M., 1998, Late Ordovician brachiopods from the South China Plate and their palaeogeographical significance: Special Papers in Palaeontology, v. 59, 70 p.Google Scholar
Zhan, R., and Li, R., 1998, The discovery of Altaethyrella Severgina 1978 (Late Ordovician rhynchonelloid brachiopods) in China: Acta Palaeontologica Sinica, v. 37, p. 194211.Google Scholar
Zhan, R., and Vinn, O., 2007, Cornulitid epibionts on brachiopod shells from the Late Ordovician (mid Ashgill) of East China: Estonian Journal of Earth Sciences, v. 55, p. 101108.Google Scholar
Zhang, Y-D., and Munnecke, A., 2016, Ordovician stable carbon isotope stratigraphy in the Tarim Basin, NW China: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 458, p. 154175.Google Scholar
Zhang, Y-Y., Li, Y., Wang, G., and Munnecke, A., 2017, Windward and leeward margins of an Upper Ordovician carbonate platform in the Central Tarim Uplift, Xinjiang, northwestern China: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 474, p. 7988.Google Scholar