Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-08T01:56:41.384Z Has data issue: false hasContentIssue false

Seirocrinus subangularis (Miller, 1821), a Pliensbachian (Lower Jurassic) crinoid from the Fernie Formation, Alberta, Canada

Published online by Cambridge University Press:  20 May 2016

Russell L. Hall*
Affiliation:
Geology and Geophysics, University of Calgary, Calgary, Alberta T2N 1N4, Canada

Abstract

An almost complete specimen of the pentacrinid Seirocrinus subangularis (Miller, 1821) is described from the Red Deer Member of the Fernie Formation in the Rocky Mountains of central-western Alberta. Associated ammonites representing the Stokesi Subzone of the Margaritatus Zone indicate a Late Pliensbachian (Early Jurassic) age for the specimen. Taphonomic features suggest preservation in soft muds on a quiet, oxygen-deficient seafloor, so that the lower surface is preserved intact while ossicles on the exposed upper surface became disarticulated and were slightly disturbed. This occurrence in western Canada represents a major extension of the geographic range of the species.

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

Blumenbach, J. F. 1804. Abbildungen naturhistorischer Gegenstande, 7(70):14. Gottingen.Google Scholar
Clark, W. B. 1893. The Mesozoic Echinodermata of the United States. U.S. Geological Survey Bulletin 97, 207 p.Google Scholar
Clark, W. B., and Twitchell, M. H. 1915. The Mesozoic and Cenozoic Echinodermata of the United States. U.S. Geological Survey Monograph 54:1341.Google Scholar
Frebold, H. 1969. Subdivision and facies of Lower Jurassic rocks in the southern Canadian Rocky Mountains and foothills. Geological Association of Canada Proceedings 20:7689.Google Scholar
Gislén, T. 1924. Echinoderm studies. Zoologiska Bidrag från Uppsala, 9:1330.Google Scholar
Gray, J. E. 1842. Synopsis of the contents of the British Museum, 44th edition. London, 308 p.Google Scholar
Hall, R. L. 1984. Lithostratigraphy and biostratigraphy of the Fernie Formation (Jurassic) in the southern Canadian Rocky Mountains, p. 233247. In Stott, D. F. and Glass, D. J. (eds.), The Mesozoic of Middle North America. Canadian Society of Petroleum Geologists, Memoir 9.Google Scholar
Hall, R. L. 1987. New Lower Jurassic ammonite faunas from the Fernie Formation, southern Canadian Rocky Mountains. Canadian Journal of Earth Sciences, 24:16881704.Google Scholar
Haude, R. 1979. Constructional morphology of the stems of Pentacrinitidae, and mode of life of Seirocrinus, p. 1723. In Jangoux, M., (ed.), Echinoderms: Present and Past. Balkema, Rotterdam.Google Scholar
Hess, H. 1955. Zur Kenntnis der Crinoidenfauna des Schweizer Jura. 1. Die Gattungsmerkmale von Isocrinus und Pentacrinus. Eclogae Geologicae Helvetiae, 48:468486.Google Scholar
Imlay, R. W. 1955. Characteristic Jurassic mollusks from northern Alaska. U.S. Geological Survey Professional Paper 274-D:6996.CrossRefGoogle Scholar
Jäger, M. 1985. Die Crinoiden aus dem Pliensbachium (mittlerer Lias) von Rottorf am Klei und Empelde (Sud-Niedersachsen). Bericht. Naturhistorische Gesellschaft zu Hannover, 128:71151.Google Scholar
Jäger, M. 1986. Crinoiden, p. 53176. In Fischer, R. et al., Paläontologie einer epikontinentalen Lias-Schichtfolge: Oberes Sinemurium bis Oberes Domerium von Empelde bei Hannover. Facies: 15.Google Scholar
Kaever, M., Oekentorp, K., and Siegfried, P. 1976. Fossilien West-falens. Invertebraten des Jura. Münstersche Forschungen zur Geologie und Paläontologie, 40/41:1360.Google Scholar
Kauffman, E. G. 1981. Ecological reappraisal of the German Posidonienschiefer (Toarcian) and the stagnant basin model, p. 311381. In Gray, J., Boucot, A. J., and Berry, W. B. N. (eds.), Communities of the Past. Hutchinson Ross, Stroudsburg, Pennsylvania.Google Scholar
Klikushin, V. G. 1982. Taxonomic survey of fossil isocrinids with a list of the species found in the USSR. Geobios, 15:299325.Google Scholar
Klikushin, V. G. 1987. Crinoids from the Middle Liassic Rosso ammonitico beds. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 175:235260.Google Scholar
Miller, J. S. 1821. A Natural History of the Crinoidea, or Lily-shaped Animals, With Observation on the Genera Asteria, Euryale, Comatula and Marsupites. Bryan and Co., Bristol, 150 p.Google Scholar
Poulton, T. P. 1978. Pre-Late Oxfordian Jurassic biostratigraphy of northern Yukon and adjacent Northwest Territories, p. 445471. In Stelck, C. R. and Chatterton, B. D. E. (eds.), Western and Arctic Canadian Biostratigraphy. Geological Association of Canada Special Paper 18.Google Scholar
Rasmussen, H. W. 1977. Function and attachment of the stem in Isocrinidae and Pentacrinitidae: review and interpretation. Lethaia, 10:5157.Google Scholar
Rasmussen, H. W. 1978. Articulata, p. T813T998. In Moore, R. C. and Teichert, C. (eds.), Treatise on Invertebrate Paleontology, Pt. T, Echinodermata 2(3). Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
Seilacher, A., Drozdzewski, G., and Haude, R. 1968. Form and function of the stem in a pseudoplanktonic crinoid (Seirocrinus). Palaeontology, 11:275282.Google Scholar
Sieverts-Doreck, H. 1952. Classification, p. 613614. In Moore, R. C., Lalicker, C. G., and Fischer, A. G., Invertebrate Fossils. McGraw-Hill, New York.Google Scholar
Sieverts-Doreck, H. 1978. Nachweis der Pentacrinites fossilis-Gruppe im schwäbischen Arietenkalk (Lias, a3, unteres Sinemurium). Stuttgarter Beiträge zur Naturkunde, Series B, 35:115.Google Scholar
Simms, M. J. 1986. Contrasting lifestyles in Lower Jurassic crinoids: a comparison of benthic and pseudopelagic Isocrinida. Palaeontology, 29:475493.Google Scholar
Simms, M. J. 1988. Patterns of evolution among Lower Jurassic crinoids. Historical Biology, 1:1744.Google Scholar
Simms, M. J. 1989. British Lower Jurassic Crinoids. Palaeontographical Society Monograph 142, 103 p.Google Scholar
Springer, F. 1909. A new American Jurassic crinoid. U.S. National Museum Proceedings, 36:179190.Google Scholar
Springer, F. 1925. The genus Pentacrinus in Alaska. U.S. National Museum Proceedings, 67:17.Google Scholar
Stronach, N. J. 1984. Depositional environments and cycles in the Jurassic Fernie Formation, southern Canadian Rocky Mountains, p. 4367. In Stott, D. F. and Glass, D. J. (eds.), The Mesozoic of Middle North America. Canadian Society of Petroleum Geologists Memoir 9.Google Scholar
Zittel, K. A. von. 1876–1880. Handbuch der Paläontologie, Band 1, Paläozoologie. R. Oldenbourg, München und Leipzig[1879], Abt. 1, 765 p.Google Scholar