Hostname: page-component-848d4c4894-xm8r8 Total loading time: 0 Render date: 2024-06-30T07:25:29.207Z Has data issue: false hasContentIssue false

Lower Cambrian pediculate lingulids from Yunnan, China

Published online by Cambridge University Press:  20 May 2016

Jin Yugan
Affiliation:
Nanjing Institute of Geology and Palaeontology, Academia Sinica, Chi-Ming-Ssu, Nanjing 210008, China
Hou Xianguang
Affiliation:
Nanjing Institute of Geology and Palaeontology, Academia Sinica, Chi-Ming-Ssu, Nanjing 210008, China
Wang Huayu
Affiliation:
Nanjing Institute of Geology and Palaeontology, Academia Sinica, Chi-Ming-Ssu, Nanjing 210008, China

Abstract

The vermiform pedicle is one of the most distinctive organs of modern lingulids, but it is rarely preserved. Only two fossil specimens of lingulids with pedicle casts have been reported, one from the Ordovician and the other from the Devonian. No record of fossil pedicles of Lingulella and Lingulepis, the dominant Cambrian and Early Ordovician lingulids, is known. Fossil lingulids from the Lower Cambrian of Chengjiang County, Yunnan, suggest that the structure and function of the pedicle of the lingulids has not changed significantly from its first appearance. A comparison of fossil pedicle of lingulids from the Lower Cambrian, Chengjiang County (China), the Burgess Shale, Middle Cambrian, British Columbia (Canada), the Trenton Formation, Middle Ordovician, New York (U.S.A.), and the Devonian, Devonshire (England, U.K.) shows that the delthyrial area to which the pedicle muscles are attached was reduced in length through time until these muscles were completely embraced by the two valves.

Two species, Lingulella chengjiangensis n. sp. and Lingulepis malongensis Rong, are described.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Blochmann, R. 1900. Untersuchungen ueber den Bau der Brachiopoden. II. Die Anatomie von Discinisca lamellose Broderip und Lingula anatina Bruguière, p. 69124. Gustav Fischer, Jena.Google Scholar
Chuang, S. H. 1964. The circulation of coelomic fluid in Lingula unguis. Proceedings of the Zoological Society of London, 143:221237.CrossRefGoogle Scholar
Chuang, S. H. 1971. New interpretation of the morphology of Schizambon australis Ulrich and Cooper (Ordovician siphonotretid inarticulate brachiopod). Journal of Paleontology, 45:824832.Google Scholar
Davidson, T. 1874. A monograph of British fossil brachiopods. Palaeontological Society Monograph, 4:103109.Google Scholar
Emig, C. C. 1977. Réflexions sur la taxonomie des espèces du genre Lingula (Brachiopodes, Inarticulés). Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences, Paris, D, 285:523525.Google Scholar
Emig, C. C. 1982a. Terrier et position des Lingules (Brachiopodes, Inarticulés). Bulletin de la Société Zoologique de France, 107:185194.Google Scholar
Emig, C. C. 1982b. Taxonomie du genre Lingula (Brachiopodes, Inarticulés). Bulletin du Muséum National d'Histoire Naturelle, Paris, Section A, 4:337367.CrossRefGoogle Scholar
Emig, C. C. 1983. Sur les relations du panchronisme avec les conditions écologiques: le cas des Lingules (Brachiopodes, Inarticulés). Bulletin de la Société Zoologique de France, 108:558561.Google Scholar
Hall, J. 1863. Description of new species of Brachiopoda from the Upper Helderberg, Hamilton, and Chemung groups. Annual Report New York State Cabinet of Natural History, 13:7694.Google Scholar
Hammen, C. S., and Lum, S. C. 1977. Salinity tolerance and pedicle regeneration of Lingula. Journal of Paleontology, 52:548551.Google Scholar
Hancock, A. 1859. On the organization of the Brachiopoda. Philosophical Transactions of the Royal Society of London, B, 148:791869.Google Scholar
Hou, X. G. 1987. Two new arthropods from the Lower Cambrian, Chengjiang, eastern Yunnan. Acta Palaeontologia Sinica, 26:237256.Google Scholar
King, W. 1846. Remarks on certain genera belonging to the class Palliobranchiata. Annals and Magazine of Natural History, 18:2642.Google Scholar
Lu, Y. H. 1941. Lower Cambrian stratigraphy and trilobite fauna of Kunming, Yunnan. Bulletin of Geological Society of China, 21:7190.Google Scholar
Lu, Y. H., and Zhu, Z. L. 1981. Summary of the Cambrian biostratigraphy of China. U.S. Geological Survey Open-File Report 81-743:121122.Google Scholar
Mackay, S., and Hewitt, R. A. 1978. Ultrastructural studies on the brachiopod pedicle. Lethaia, 11:331339.Google Scholar
Mansuy, H. 1912. Etude géologique du Yunnan oriental. Pt. 2. Paléontologie. Mémoires du Service géologique de l'Indochine, 6(1):1146.Google Scholar
Menke, C. T. 1828. Synopsis methodica molluscorum generum omnium et specierum earum quae in Museo Menkeano odservantur. Pyrmonti, 91 p.Google Scholar
Morse, E. S. 1902. Observations on living brachiopods. Memoirs of the Boston Society of Natural History, 5:313386.Google Scholar
Pickerill, R. K. 1973. Lingulasma tenuigranulata—paleoecology of a large Ordovician linguloid that lived within a strophomenid-trilobite community. Palaeogeography, Palaeoclimatology, Palaeoecology, 13:143156.Google Scholar
Pickerill, R. K., Harland, T. L., and Fillion, D. 1983. In situ lingulids from deep-water carbonates of the Middle Ordovician Table Head Group of Newfoundland and the Trenton Group. Canadian Journal of Earth Sciences, 21:194199.Google Scholar
Qian, Y., and Bengtson, S. 1989. Palaeontology and biostratigraphy of the Early Cambrian Meishucunian Stage in Yunnan Province, South China. Fossils and Strata, 24:1156.Google Scholar
Rong, J. Y. 1974. Cambrian brachiopods, p. 113114. In Nanjing Institute of Geology and Palaeontology, Academia Sinica, Handbook of Palaeontology and Stratigraphy of Southwest China. Sciences Press, Beijing.Google Scholar
Salter, J. W. 1866. Appendix. On the fossils of North Wales. Memoirs of the Great Britain Geological Survey, 3:240381.Google Scholar
Savazzi, E. 1986. Burrowing sculpture and life habitats in Paleozoic lingulacean brachiopods. Paleobiology, 12:4663.Google Scholar
Schuchert, Charles. 1893. A classification of the Brachiopoda. The American Geologist, 11:141167.Google Scholar
Waagen, W. H. 1885. Salt Range fossils, part 4(2), Brachiopoda. Palaeontologia Indica, Series 13, 1:729770.Google Scholar
Walcott, C. D. 1888. A fossil Lingula preserving the cast of the peduncle. Proceedings of the United States National Museum, 11:480.Google Scholar
Whittington, H. B. 1975. The enigmatic animal Opabinia regalis, Middle Cambrian Burgess Shale, British Columbia. Philosophical Transactions of the Royal Society of London, B, 271:143.Google Scholar
Yatsu, N. 1902. On the habits of the Japanese Lingula. Annotationes Zoologicae Japonenses, 4:6167.Google Scholar
Zhang, W. T., Yuan, K. X., Zhou, Z. Y., Qian, Y., and Wang, Z. Z. 1979. The Cambrian System of southwestern China, p. 39107. In Nanjing Institute of Geology and Palaeontology, Academia Sinica, The Carbonate Biostratigraphy of Southwestern China. Sciences Press, Beijing.Google Scholar
Zhou, Z. Y., and Yuan, J. L. 1980. Lower Cambrian trilobite succession in southwest China. Acta Palaeontologia Sinica, 19:331339.Google Scholar
Zhou, Z. Y., and Yuan, J. L. 1982. A tentative correlation of Cambrian system in China with those in selected regions overseas. Bulletin of Nanjing Institute of Geology and Palaeontology, Academia Sinica, 5:289306.Google Scholar