Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-26T06:39:15.406Z Has data issue: false hasContentIssue false
  • English
  • Français

A new cyclocystoid (Echinodermata) from the Late Ordovician of Kentucky, U.S.A.

Published online by Cambridge University Press:  14 July 2015

Andrew B. Smith  and
Mark A. Wilson
Andrew B. Smith
Affiliation:
Department of Palaeontology, The Natural History Museum, Cromwell Road, London SW7 5BD, U.K, and
Mark A. Wilson
Affiliation:
Department of Geology, The College of Wooster, Wooster, Ohio 44691
Get access Rights & Permissions [Opens in a new window]

Extract

Cyclocystoids are one of the rarest and most enigmatic of the extinct echinoderm groups. Despite recent systematic revision (Smith and Paul, 1982), their basic anatomy and functional morphology remain poorly understood. Smith and Paul (1982) recognized eight genera and 39 species ranging in age from Lower Ordovician to Late Devonian. Since then, one new genus and species, Monocycloides oelandicus, has been established by Berg-Madsen (1987), and the range of the genus Sievertsia has been extended to the Middle Devonian of the U.S.A (Fluegeman and Orr, 1990). In addition, undescribed cyclocystoid marginal ossicles have been found in the Lower Carboniferous of Ireland (G. D. Sevastopulo, personal communication). Here we record an additional new species from the Late Ordovician of Kentucky.

Type
Paleontological Notes
Information
Journal of Paleontology , Volume 69 , Issue 6 , November 1995 , pp. 1186 - 1187
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

Berg-Madsen, V. 1987. A new cyclocystoid from the Lower Ordovician of Oland, Sweden. Palaeontology, 30:105–116.Google Scholar
Billings, E. 1858. On the Cystoideae of the Lower Silurian rocks of Canada. Figures and descriptions of Canadian organic remains. Geological Survey of Canada, Montreal, 9-74.CrossRefGoogle Scholar
Fluegeman, R. H., and Orr, R. W. 1990. Occurrence of Sievertsia (Echinodermata: Cyclocystoidea) from the Middle Devonian of northern Indiana. Journal of Paleontology, 64:480–482.Google Scholar
Meyer, D. L., Tobin, R. C., Pryor, W. A., Harrison, W. B., Osgood, R. G. Jr., Hinterlong, G. D., Krumpolz, B. J., and Mahan, T. K. 1981. Stratigraphy, sedimentology, and paleoecology of the Cincinnatian Series (Upper Ordovician) in the vicinity of Cincinnati, Ohio, p. 31–71. In Roberts, T. G. (ed.), Geological Society of America Cincinnati '81 Field Trip Guidebooks, Volume I.Google Scholar
Miller, S. A. 1882. Description of three new orders and four new families in the class Echinodermata and eight new species from the Silurian and Devonian formations. Journal of the Cincinnati Society of Natural History, 5:221–231.Google Scholar
Miller, S. A., and Dyer, C. B. 1878. Contributions to palaeontology. Journal of the Cincinnati Society of Natural History, 1:24–39.Google Scholar
Shrake, D. L. 1988. Field guidebook to the stratigraphy, sedimentology, and paleontology of the Upper Ordovician rocks in southwestern Ohio. SEPM, Fifth Midyear Meeting of the Society of Economic Paleontologists and Mineralogists, Ohio Department of Natural Resources, Columbus, 81 p.Google Scholar
Smith, A. B., and Paul, C. R. C. 1982. Revision of the class Cyclocystoidea (Echinodermata). Philosophical Transactions of the Royal Society of London, Series B, 296:577–684.Google Scholar