Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-27T09:32:48.087Z Has data issue: false hasContentIssue false
  • English
  • Français

A new Middle Triassic flat clam (Pterioida: Halobiidae) from the middle Anisian of north-central Nevada, USA

Published online by Cambridge University Press:  11 August 2017

Emily K. Hopkin  and
Christopher A. McRoberts
Emily K. Hopkin
Affiliation:
Department of Geology, State University of New York at Cortland 13045 USA,
Christopher A. McRoberts
Affiliation:
Department of Geology, State University of New York at Cortland 13045 USA,
Get access Rights & Permissions [Opens in a new window]

Extract

In addition to ammonoids and conodonts, the enigmatic and poorly understood “flat clams” belonging to the genera Enteropleura Kittl, 1912, Daonella Mojsisovics, 1874, Halobia Bronn, 1830, and Monotis Bronn, 1830 have proven to be of biochronologic value through the Middle and Upper Triassic (e.g., Silberling and Nichols, 1982; Brack and Rieber, 1993; Campbell, 1994; McRoberts, 1997). These “flat clams,” many belonging to the family Halobiidae, can be extremely abundant in the marine Triassic rocks of the former Panthalassic Ocean and especially the Tethyan Seaway, where many of these species were first described. Their widespread nature and high speciation rates make these bivalves exceptional biochronologic indicators, especially when integrated with the temporal distribution of other, more conventional indices such as ammonoids and/or conodonts. We describe and name a poorly documented halobiid species, Enteropleura jenksi n. sp., from the latest middle Anisian and therefore provide a robust correlation datum for the Shoshonensis Zone.

Type
Paleontological Notes
Information
Journal of Paleontology , Volume 79 , Issue 4 , July 2005 , pp. 796 - 800
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

Arthaber, G. 1896. Die Cephalopodenfauna der Reiflinger Kalke, Abtheilung II: Die Fauna des Fundortes Rahnbauerkogel. Beiträge zur Paläontologie und Geologie Österreich-Ungarns und des Orients, 10:192–242.Google Scholar
Beurlen, K. 1944. Beiträge zur Stammesgeschichte der Muscheln. München Akademie Sitzungsberichte, 11:113–131.Google Scholar
Brack, P., and Rieber, H. 1993. Towards a better definition of the Anisian/Ladinian boundary: new biostratigraphic data and correlations of boundary sections from the southern Alps. Eclogae Geologicae Helvetiae, 86(2):415–572.Google Scholar
Bronn, H. 1830. Über die Muschel-Versteinerungen des sud-Deuschen Steinsalzgebirges, welche bisher unter dem Namen Pectines salinarius zusammenbegriffen wurden. Jahrbuch für Mineralogie, Geognosie, Geologie, und Petrefaktenkunde, 1:279–285.Google Scholar
Bucher, H. 1988. A new Middle Anisian (Middle Triassic) ammonoid zone from northwestern Nevada (USA). Eclogae Geologicae Helvetiae, 81(3):723–762.Google Scholar
Bucher, H. 1992. Ammonoids of the Shoshonensis Zone (Middle Anisian, Middle Triassic) from Northwestern Nevada (USA). Jahrbuch der Geologisch Bundesanstalt, 135(2):425–465.Google Scholar
Campbell, H. J. 1994. The Triassic bivalves Halobia and Daonella in New Zealand, New Caledonia, and Svalbard. Institute of Geological & Nuclear Sciences Monograph, 4:1–166.Google Scholar
Cox, L. R., and Newell, N. D. 1969. Family Posidoniidae, p. N342–N344. In Moore, R. C. and Tiechert, C. (eds.), Treatise on Invertebrate Paleontology, Pt. N, Mollusca 6. Geological Society of America and Kansas University Press, Lawrence.Google Scholar
Dane, C. H., and Ross, C. P. 1942. The Wild Horse quicksilver district Lander county, Nevada. U.S. Geological Survey Bulletin, 931-K:259–278.Google Scholar
De Gregorio, A. 1886. Monographie des fossils de Valpore (Mont Grappa) du sous-horizon Grappin de Greg. Annales de Géologie et de Paléontologie, 2:1–20.Google Scholar
Encheva, M. G. 1978. Phylogenetic development of the family Posidoniidae and the genera Daonella and Halobia (Bivalvia, Triassic). Geologica Balanica, 8(2):55–67.Google Scholar
Hyatt, A., and Smith, J. P. 1905. The Triassic cephalopod genera of America. U.S. Geological Survey Professional Paper, 40:1–394.Google Scholar
Ichikawa, K. 1958. Zur taxonomie und phylogeni der triadschen “Pteriidae” (Lamellibranch), mit besonderer beruksichtigung der gattung Claraia, Eumorphotis, Oxytoma und Monotis . Palaeontographica, A, 3:131–212.Google Scholar
Kittl, E. 1912. Materialen zu einer Monographie der Halobiidae und Monotidae der Trias. Resultate der Wissenschaftlichen Erforschung des Balatonsees, I Band, I Teil. Paleontologie. Hofbuchdruckerei Viktor Hornyánszky, Budapest, 229 p.Google Scholar
Linné, C. 1758. Systema Naturae per Regna Naturae. Laurentius Salvius, Stockholm, 824 p.Google Scholar
McRoberts, C. A. 1997. Late Triassic North American Halobiid bivalves: stratigraphic distribution, diversity trends, and their circum-Pacific correlations, p. 198–208. In Dickins, J. M. et al. (eds.), Late Paleozoic and Early Mesozoic Circum-Pacific Events. Cambridge University Press, Cambridge.Google Scholar
Mojsisovics, E. von. 1874. Über Die Triadischen Pelecypoden-Gattungen Daonella und Halobia . Abhandlungen der Kaiserlich Königlich Geologischen Reichsanstalt, 7:1–35.Google Scholar
Muller, S. W., Ferguson, H. G., and Roberts, R. J. 1951. Geology of the Mount Tobin quadrangle, Nevada. U.S. Geological Survey Geological Quadrangle Map, GQ-7.Google Scholar
Newell, N. D. 1965. Classification of the Bivalvia. American Museum Novitates, 2206:1–25.Google Scholar
Nichols, K. M., and Silberling, N. J. 1977. Stratigraphy and depositional history of the Star Peak Group (Triassic), northwestern Nevada. Geological Society of America Special Paper, 178:1–73.CrossRefGoogle Scholar
Nicora, A. 1976. Conodont-fauna, stratigraphic position and relations to the Tethyan successions of the Shoshonensis Zone (Pelsonian) of Nevada. Rivista Italiana di Paleontologie e Stratigrafe, 82(4):627–650.Google Scholar
Silberling, N. J., and Nichols, K. M. 1982. Middle Triassic molluscan fossils of biostratigraphic significance from the Humboldt Range, northwestern Nevada. U.S. Geological Survey Professional Paper, 1207:1–38.Google Scholar
Silberling, N. J., and Tozer, E. T. 1968. Biostratigraphic classification of the marine Triassic in North America. Geological Society of America Special Paper, 110:1–63.Google Scholar
Silberling, N. J., Jones, D. L., Blake, M. C. J., and Howell, D. G. 1987. Lithotectonic terranes of the western conterminous United States. U.S. Geological Survey Miscellaneous Field Studies Map, MF-1874-C.Google Scholar
Smith, J. P. 1914. The Middle Triassic marine invertebrate faunas of North America. U.S. Geological Survey Professional Paper, 83:1–148.Google Scholar
Waller, T. R. 1978. Morphology, morphoclines and a new classification of the Pteriomorphia (Mollusca: Bivalvia). Philosophical Transactions of the Royal Society of London, ser. B, 284:345–365.Google Scholar