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Crinoids from the Brassfield Formation of Adams County, Ohio

Published online by Cambridge University Press:  19 May 2016

William I. Ausich  and
Philip Dravage
William I. Ausich
Affiliation:
Department of Geology and Mineralogy, 125 S. Oval Mall, The Ohio State University, Columbus 43210
Philip Dravage
Affiliation:
Department of Geology, Miami University, Oxford, Ohio 45056
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Abstract

A new species of Ptychocrinus, Ptychocrinus adamsensis, and dendrocrinid, genus and species undetermined, are described from the Lower Silurian (Llandovery) Brassfield Formation of Adams County, Ohio. Unlike previously recognized Ptychocrinus species, P. adamsensis has biserial arms. Accordingly, the generic concept of Ptychocrinus is broadened. Ptychocrinus adamsensis is the youngest North American species of Ptychocrinus. Ptychocrinus is not known from the Brassfield fauna that has been previously described from the Greene–Montgomery County area of Ohio.

Type
Research Article
Information
Journal of Paleontology , Volume 62 , Issue 2 , March 1988 , pp. 285 - 289
Copyright
Copyright © The Paleontological Society 

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References

Ausich, W. I. 1984. Calceocrinids from the Early Silurian (Llandoverian) Brassfield Formation of southwestern Ohio. Journal of Paleontology, 58:1167–1185.Google Scholar
Ausich, W. I. 1986. Early Silurian inadunate crinoids (Brassfield Formation, Ohio). Journal of Paleontology, 60:719–735.Google Scholar
Ausich, W. I. 1987. Revision of Rowley's Ordovician(?) and Silurian crinoids from Missouri. Journal of Paleontology, 61:563–578.Google Scholar
Brower, J. C. 1973. Crinoids from the Girardeau Limestone (Ordovician). Palaeontographica Americana, 7(46):263–499.Google Scholar
Brower, J. C. 1975. Silurian crinoids from the Pentland Hills, Scotland. Palaeontology, 18:631–636.Google Scholar
Cooper, B. J. 1975. Multielement conodonts from the Brassfield Limestone (Silurian) of southern Ohio. Journal of Paleontology, 49:984–1008.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
Grahn, Y., and Bergstr, S. M.öm. 1985. Chitinozoans from the Ordovician-Silurian boundary beds in the eastern Cincinnati region in Ohio and Kentucky. Ohio Journal of Science, 85:175–183.Google Scholar
Hall, J. 1867. Descriptions of some new species of Crinoidea and other fossils from the Lower Silurian strata, principally of the age of the Hudson River Group. New York State Museum of Natural History 20th Annual Report, p. 304.Google Scholar
Kleffner, M. A. 1985. Conodont biostratigraphy of the Stray, “Clinton,” and “Packer Shell” (Silurian, Ohio subsurface) and its bearing on correlation, p. 219–229. In Gray, J., Maslowski, A., McCullough, W., and Shafer, W. E. (eds.), The New Clinton Collection, 1985. The Ohio Geological Society, Columbus, Ohio.Google Scholar
Miller, S. A. 1883. Glyptocrinus redefined and restricted, Gaurocrinus, Pycnocrinus and Compsocrinus established, and two new species described. Journal of the Cincinnati Society of Natural History, 6:217–234.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
Nicoll, R. S., and Rexroad, C. B. 1968. Stratigraphy and conodont paleontology of the Salamonie Dolomite and Lee Creek Member of the Brassfield Formation (Silurian) in southeastern Indiana and adjacent Kentucky. Indiana Geological Survey Bulletin 40, 73 p.Google Scholar
Phillips, J. 1839. Silurian Encrinites, p. 670–675. In Murchison, R. I., The Silurian System, Pt. 2. London.Google Scholar
Rexroad, C. B. 1967. Stratigraphy and conodont paleontology of the Brassfield (Silurian) in the Cincinnati Arch area. Indiana Geological Survey Bulletin 36, 64 p.Google Scholar
Rowley, R. R. 1904. The Echinodermata of the Missouri Silurian and a new brachiopod. The American Geologist, 43:269–282.Google Scholar
Shumard, B. F. 1855. Description of new species of organic remains. Missouri Geological Survey, 2:185–208.Google Scholar
Swinford, E. M. 1985. Geology of the Peebles quadrangle, Adams County, Ohio. Ohio Journal of Science, 85:218–230.Google Scholar
Ubaghs, G. 1978. Camerata, p. T408–519. In Moore, R. C. and Teichert, C. (eds.), Treatise on Invertebrate Paleontology, Pt. T, Echinodermata 2. Geological Society of America and University of Kansas Press, Lawrence, Kansas.Google Scholar
Wachsmuth, C., and Springer, F. 1885. Revision of the Palaeocrinoidea, Pt. 3, Section 1. Discussion of the classification and relations of the brachiate crinołds, and conclusions of the generic descriptions. Philadelphia Academy of Sciences Proceedings, p. 223–364 (1-162).Google Scholar
Zittel, K. A. von. 1876-1880. Handbuch der Palaeontologie, Band 1, Palaeozoologie. R. Oldenbourg, Munchen and Leipzig, 765 p.Google Scholar