Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-06T09:59:44.394Z Has data issue: false hasContentIssue false
  • English
  • Français

Early Silurian rhodocrinitacean crinoids (Brassfield Formation, Ohio)

Published online by Cambridge University Press:  14 July 2015

William I. Ausich
William I. Ausich*
Affiliation:
Department of Geology & Mineralogy, The Ohio State University, Columbus 43210
Get access Rights & Permissions [Opens in a new window]

Abstract

Six Early Silurian Rhodocrinitacea (Crinoidea, Camerata) are recognized from the Brassfield Formation of Ohio. Previously only a single Early Silurian rhodocrinitacean was known. The new forms include Kyreocrinus constellatus n. gen., n. sp.; Rhachicrinus wrighti n. gen., n. sp.; Silfonocrinus siluricus n. gen., n. sp.; Stereoaster squamosus Foerste; Xysmacrinus greenensis n. gen., n. sp.; and Turbocrinus punctum n. gen., n. sp. Rhachicrinus and Silfonocrinus are assigned to the Opsiocrinidae, which previously included two Devonian genera; Turbocrinus is assigned to the Anthemocrinidae; and Kyreocrinus, Stereoaster and Xysmacrinus are assigned to the Rhodocrinitidae.

The Opsiocrinidae are thought to be derived from the Reteocrinidae; and a possible basis for subdividing the Rhodocrinidae is proposed, based on the arms, plating in regular interrays, presence of median ray ridges and calyx shape.

Type
Research Article
Information
Journal of Paleontology , Volume 60 , Issue 1 , January 1986 , pp. 84 - 106
Copyright
Copyright © The Journal of Paleontology 

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

Ausich, W. I. 1984a. Calceocrinids from the Early Silurian (Llandoverian) Brassfield Formation of southwestern Ohio. Journal of Paleontology, 58:1167–1185.Google Scholar
Ausich, W. I. 1984b. The genus Clidochirus from the Early Silurian of Ohio (Crinoidea; Llandoverian). Journal of Paleontology, 58:1341–1346.Google Scholar
Ausich, W. I. and Schumacher, G. A. 1984. New Lower Silurian rhombiferan cystoid (Echinodermata, Callocystitidae) from southwestern Ohio. Journal of Paleontology, 58:9–15.Google Scholar
Breimer, A. 1960. On the structure and systematic position of the genus Rhipidocrinus Beyrich, 1879. Leidse Geologische Mededelingen, 25:247–260.Google Scholar
Brett, C. E. 1982. Terminology and functional morphology of attachment structures in pelmatozoan echinoderms. Lethaia, 14:343–370.Google Scholar
Brower, J. C. 1975. Silurian crinoids from the Pentland Hills, Scotland. Palaeontology, 18:631–656.Google Scholar
Foerste, A. F. 1888. Notes on Paleozoic fossils. Bulletin of the Scientific Laboratories for Denison University, 3(1):117—136.Google Scholar
Foerste, A. F. 1893. Fossils of the Clinton Group in Ohio and Indiana. Ohio Geological Survey, 7:516–601.Google Scholar
Foerste, A. F. 1919. Echinodermata of the Brassfield (Silurian) Formation of Ohio. Bulletin of the Scientific Laboratories of Denison University, 19:3–31.Google Scholar
Foerste, A. F. 1936. Several new Silurian cephalopods and crinoids, chiefly from Ohio and Hudson Bay. Ohio Journal of Science, 36:261–272.Google Scholar
Frest, T. J. and Strimple, H. L. 1981. New camerate crinoids from the Silurian of North America. Journal of Paleontology, 55:639–655.Google Scholar
Frest, T. J. 1979. Late Ordovician channel-dwelling crinoids from southern Ontario, Canada. American Museum Novitates, 2665, 25 p.Google Scholar
Kelly, S. M., Frest, T. J. and Strimple, H. L. 1978. Additional information on Simplococrinus persculptus . Journal of Paleontology, 52:1227–1232.Google Scholar
Kier, P. M. 1952. Echinoderms of the Middle Devonian Silica Formation of Ohio. Contributions from the Museum of Paleontology, University of Michigan, 14:201–206.Google Scholar
Kissling, D. L. 1969. Ecology of Silurian crinoid-root bioherms. Geological Society of American Abstracts with Programs for 1969:126.Google Scholar
Kolata, D. R. 1982. Camerates, p. 170–205. In Sprinkle, J. (ed.), Echinoderm Faunas from the Bromide Formation (Middle Ordovician) of Oklahoma. The University of Kansas Paleontological Contribution Monograph 1, Lawrence, Kansas.Google Scholar
Lewis, R. D. 1982. Holdfasts, p. 57–64. In Sprinkle, J. (ed.), Echinoderm Faunas from the Bromide Formation (Middle Ordovician) of Oklahoma. The University of Kansas Paleontological Contributions Monograph 1, Lawrence, Kansas.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 Company, Bristol, 150 p.Google Scholar
Moore, R. C. and Laudon, L. R. 1943. Evolution and classification of Paleozoic crinoids. Geological Society of America Special Paper 46, 153 p.Google Scholar
Rexroad, C. B. 1967. Stratigraphy and conodont paleontology of the Brassfield (Silurian) in the Cincinnati Arch area. Indiana Geological Survey, Bulletin 16, 64 p.Google Scholar
Roemer, C. F. 1854–1855. Erste Periode, Kohlen-Gebirge, 788 p. In Brown, H. G., Lethaea Geognostica, 3rd ed., Vol. 2. E. Schweizerbart, Stuttgart.Google Scholar
Spencer, W. K. and Wright, C. W. 1966. Asterozoans, p. U4-U107. In Moore, R. C. (ed.), Treatise on Invertebrate Paleontology, Part U, Echinodermata 3. Geological Society of America and University of Kansas, Lawrence, Kansas.Google Scholar
Ubaghs, G. 1953. Classe des Crinoides, p. 658–773. In Piveteau, J. (ed.), Traité de Paléontologie 3. Masson and Cie, Paris, France.Google Scholar
Ubaghs, G. 1978. Camerata, p. T408-T519. In Moore, R. C. and Teichert, C. (eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2. Geological Society of America and University of Kansas, Lawrence, Kansas.Google Scholar
Wachsmuth, C. and Springer, F. 1885–1886. Revision of the Palaeocrinidae. Academy of Natural Sciences of Philadelphia Proceedings, Part 3, sections 1 and 2 for 1885, 226–360, 64–227 p.Google Scholar
Witzke, B. J. and Strimple, H. K. 1981. Early Silurian camerate crinoids of eastern Iowa. Proceedings of the Iowa Academy of Science, 88:101–137.Google Scholar