Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-06T08:28:11.454Z Has data issue: false hasContentIssue false
  • English
  • Français

Lamottia (Favositida, Tabulata) from the Decorah Formation (Kirkfieldian, Ordovician) of Iowa

Published online by Cambridge University Press:  02 September 2016

Jeffrey C. Edwards
Jeffrey C. Edwards*
Affiliation:
Department of Geology, University of Iowa, Iowa City 52242
Get access Rights & Permissions [Opens in a new window]

Abstract

The early tabulate coral Lamottia heroensis has been identified from the Ion Member of the Decorah Formation (Upper Ordovician) in northeast Iowa. This extends the stratigraphic range of this species upward from Lower Chazyan to Kirkfieldian, and extends the geographic range from the Vermont-New York border area to include the north-central Midcontinent. Thin section and SEM studies strongly support the contention that the longitudinal pattern of alternating light and dark bands observed in corallite walls reflects a primary structural grain rather than a secondary diagenetic feature.

Type
Research Article
Information
Journal of Paleontology , Volume 62 , Issue 3 , May 1988 , pp. 424 - 426
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

Agnew, A. F. 1955. Facies of Middle and Upper Ordovician rocks of Iowa. American Association of Petroleum Geologists Bulletin, 39:1703–1752.Google Scholar
Bassler, R. S. 1950. Faunal lists and descriptions of Paleozoic corals. Geological Society of America Memoir 44, 315 p.Google Scholar
Flower, R. H. 1961. Part 1–Montoya and related colonial corals. New Mexico State Bureau of Mines and Mineral Resources Memoir 7, 97 p.Google Scholar
Hill, D. 1981. Tabulata, p. F430–F762. In Teichert, C. (ed.), Treatise on Invertebrate Paleontology, Pt. F, Supplement 1. Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
Kay, G. M. 1929. Stratigraphy of the Decorah Formation. Journal of Geology, 37:639–671.Google Scholar
Laub, R. S. 1984. Lichenaria Winchell and Schuchert, 1895, Lamottia Raymond, 1924, and the early history of the tabulate corals. Palaeontographica Americana, 54:159–163.Google Scholar
Milne-Edwards, H., and Haime, J. 1850. A Monograph of the British Fossil Corals. Palaeontographical Society, London, 71 p.Google Scholar
Raymond, P. E. 1924. The oldest coral reef. Report of the State Geologist on the Mineral Industries and Geology of Vermont, 14:72–76.Google Scholar
Scrutton, C. T. 1984. Origin and early evolution of the tabulate corals. Palaeontographica Americana, 54:110–118.Google Scholar
Sokoloy, B. S. 1950. Sistematika i istoriya razvitiya paleozoskikh Korallov Anthozoa Tabulata. Voprosy Paleontologii, 1:134–210.Google Scholar
Sokoloy, B. S. 1962. Porifera, Archaeocyatha, Coelenterata, Vermes, p. 367–368. In Orlov, Y. U. (ed.), Fundamentals of Paleontology, 2. Academy of Sciences, USSR (Israel Program for Scientific Translation, 1971).Google Scholar
Sweet, W. C. 1984. Graphic correlation of Middle and Upper Ordovician rocks, North American Midcontinent Province, U.S.A., p. 23–35. In Bruton, D. L. (ed.), Aspects of the Ordovician System. Palaeontological Contributions from the University of Oslo, 295.Google Scholar
Wedekind, R. 1937. Einführung in die Grundlagen der historischen Geologie, II. Band. Microbiostratigraphie, Die Korallen- und Foraminiferenzeit. Ferdinand Enke, Stuttgart, 136 p.Google Scholar