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A new Lower Ordovician species of Calathium, and skeletal structure of western Utah calathids

Published online by Cambridge University Press:  20 May 2016

Stephen B. Church
Stephen B. Church*
Affiliation:
Coors Energy Company, P.O. Box 467, Golden, Colorado 80402
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Abstract

Conical and vase-shaped calathids are found in the Lower Ordovician Fillmore Formation of western Utah associated with intraformational conglomerates and small patch reefs. Calathium yersini n. sp. exhibits patterns of both the inner and outer walls of calathid two-wall construction. The broadly annulate walls are constructed from meroms with fused proximal merom feet forming the inner wall. The reticulate-patterned outer wall is formed by interlocking stellate ribs at the distal end of each merom. Latitudinal (horizontal) ribs interlock adjacent merom ribs side by side at the tips of ribs while meridional (vertical) ribs overlap merom shaft to merom shaft. Inner and outer walls are perforate. Pore-canal casts preserved in silicified molds suggest an exit and entrance current circulation for inner and outer wall pores. Upper ends of the calathids are not preserved, but an open cup is interpreted from infill material and encrustation of the interior cup wall by epibionts. Epibionts commonly encrust and thicken Calathium outer walls, with the cyanobacterium Girvanella as the dominant encrusting organism. Calathium yersini n. sp., among the earliest of receptaculitids, has a morphology suitable for water circulation consistent with that of filter-feeding organisms.

Type
Research Article
Information
Journal of Paleontology , Volume 65 , Issue 4 , July 1991 , pp. 602 - 610
Copyright
Copyright © The Paleontological Society 

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References

Alberstadt, L. P., and Walker, K. R. 1976. A receptaculitid-echinoderm pioneer community in a Middle Ordovician Reef. Lethaia, 9:261–272.Google Scholar
Beadle, S. C. 1988. Dasyclads, cyclocrinitids and receptaculitids: comparative morphology and paleoecology. Lethaia, 21:1–12.Google Scholar
Billings, E. 1865. Palaeozoic fossils. Geological Survey of Canada, Vol. 1:208–211.Google Scholar
Campbell, K. S. W., Holloway, D. J., and Smith, W. D. 1974. A new receptaculitid genus, Hexabactron, and the relationships of the Receptaculitaceae. Palaeontographica A, 146:52–77.Google Scholar
Church, S. B. 1974. Lower Ordovician patch reefs in western Utah. Brigham Young University Geology Studies, 21(3):41–62.Google Scholar
Donovan, J. K. 1990. Lower Ordovician Calathium-bearing bioherms in southern Nevada. Geological Society of America, Abstracts with Programs, 22(3):19.Google Scholar
Eichwald, E. 1860. Lethaea Rossica. Stuttgart, Vol. 1, 681 p.Google Scholar
Fisher, D. C., and Nitecki, M. H. 1982a. Standardization of the anatomical orientation of receptaculitids. Paleontological Society, Memoir 13, 40 p.Google Scholar
Fisher, D. C., and Nitecki, M. H. 1982b. Problems in the analysis of receptaculitid affinities, p. 181–186. In Mamet, B. and Copeland, M. J. (eds.), Third North American Paleontological Convention, Vol. I.Google Scholar
Foster, M. 1973. Ordovician receptaculitids from California and their significance. Lethaia, 5:35–65.Google Scholar
Gould, S. J., and Katz, M. 1975. Disruption of ideal geometry in the growth of receptaculitids: a natural experiment in theoretical morphology. Paleobiology, 1:1–20.Google Scholar
Guo, S. Z. 1983. The receptaculitid Soanites from the Early Ordovician of China. Association of Australasian Paleontologists, Memoir 1:75–84.Google Scholar
Hintze, L. F. 1951. Lower Ordovician detailed stratigraphic sections for western Utah. Utah Geological and Mineralogical Survey Bulletin 39, 99 p.Google Scholar
Hintze, L. F. 1973. Lower and Middle Ordovician stratigraphic sections in the Ibex Area, Millard County, Utah. Brigham Young University Geology Studies, 20(4):3–36.Google Scholar
Hintze, L. F. 1987. Exceptionally fossiliferous Lower Ordovician strata in the Ibex area, western Millard County, Utah, p. 261–264. In Beus, S. (ed.), Centennial Field Guide. Geological Society of America, 2.Google Scholar
Hintze, L. F. 1988. Geologic History of Utah. Brigham Young University Special Publication 7, 202 p.Google Scholar
Kesling, R. V., and Graham, A. 1962. Ischadites is a dasycladacean alga. Journal of Paleontology, 36:943–952.Google Scholar
Miller, S. A. 1889. North American Geology and Paleontology for the Use of Amateurs, Students, and Scientists. Western Methodist Book Concern, Cincinnati, Ohio, 664 p.Google Scholar
Myagkova, E. I. 1965. Soanitida, a new group of organisms. Paleontological Journal, 3:16–22.Google Scholar
Myagkova, E. I. 1981. Toward the morphology of the Soanitida, p. 30–38. In Phanerozoic Problematica. Nauka Press, Moscow.Google Scholar
Myagkova, E. I. 1984. Comparative morphology of Calathium Billings 1865, and of Soanites Myagkova 1965. Academy of Sciences of the USSR, Siberian Branch, Institute of Geology and Geophysics, Transactions, 597:38–43.Google Scholar
Nitecki, M. H. 1969. Surficial pattern of receptaculitids. Fieldiana: Geology, 16(14):361–376.Google Scholar
Nitecki, M. H. 1972. North American Silurian receptaculitid algae. Fieldiana: Geology, 28, 108 p.Google Scholar
Nitecki, M. H. 1986. Receptaculitids and their relationship to other problematic fossils, p. 27–34. In Hoffman, A. and Nitecki, M. H. (eds.), Problematic Fossil Taxa. Oxford University Press, Oxford, and Clarendon Press, New York.Google Scholar
Nitecki, M. H., and Debrenne, F. 1979. The nature of radiocyathids and their relationship to receptaculitids and archaeocyathans. Geobios, 12:5–27.CrossRefGoogle Scholar
Nitecki, M. H., and Gnilovskaya, M. B. 1987. Morphological analysis of receptaculitids as exemplified by the genus Petropolissia. Paleontological Journal, 3:16–24.Google Scholar
Nitecki, M. H., and Toomey, D. F. 1979. The nature and distribution of calathid algae, p. 132. In Deuxième Symposium International sur les Algues Fossiles. Paris, Avril 1979. Resumes, Université Pierre-et-Marie-Curie, Paris.Google Scholar
Nitecki, M. H., Zhuravleva, I. T., Myagkova, E. I., and Toomey, D. F. 1981. Similarity of Soanites bimuralis to Archaeocyatha and receptaculitids. Paleontological Journal, 15:1–5.Google Scholar
Rauff, H. 1894. Paleospongiologie. Palaeontographica, 40, 346 p.Google Scholar
Rietschel, S. 1969. Die Receptaculiten. Senckenbergiana Lethaea, 50:465–517.Google Scholar
Rietschel, S. 1977. Receptaculitids are calcareous algae but not dasyclads, p. 212–214. In Flugel, E. (ed.), Fossil Algae. Springer-Verlag, Berlin, Heidelberg.Google Scholar
Rietschel, S., and Nitecki, M. H. 1982. Concept of kingdom Archaeata. Journal of Paleontology, 56(2), Supplement, Pt. 2:22.Google Scholar
Ross, R. J., James, N. P., Hintze, L. F., and Poole, F. G. 1989. Architecture and evolution of a Whiterockian (early Middle Ordovician) carbonate platform, basin ranges of western U.S.A. SEPM Special Publication, 44:167–185.Google Scholar
Rowland, S. M., and Gangloff, R. A. 1988. Structure and paleoecology of Lower Cambrian Reefs. Palaios, 3:111–135.Google Scholar
Savarese, M., and Signor, P. W. 1989. New archaeocyathan occurrences in the upper Harkless Formation (Lower Cambrian of western Nevada). Journal of Paleontology, 63:539–549.Google Scholar
Toomey, D. F., and Ingels, J. J. C. 1964. Reported Silurian occurrence of Calathium from the Thornton Reef, Illinois: a correction. Journal of Paleontology, 38:1102–1104.Google Scholar
Toomey, D. F., and Nitecki, M. H. 1979. Organic buildups in the Lower Ordovician (Canadian) of Texas and Oklahoma. Fieldiana: Geology, New Series, 2, 181 p.Google Scholar
Zhuravlev, A. Y. 1986. Radiocyathids, p. 35–44. In Hoffman, A. and Nitecki, M. H. (eds.), Problematic Fossil Taxa. Oxford University Press, Oxford, and Clarendon Press, New York.Google Scholar
Zhuravleva, I. T., and Myagkova, E. I. 1987. Phanerozoic primitive multicellulars. Academy of Sciences of the USSR, Siberian Branch, Institute of Geology and Geophysics, Transactions, 695, 212 p.Google Scholar
Zittel, K. A. 1880. Handbuch der Palaeontologie. I Band, Palaeozoologie, I Abtheilung. Protozoa, Coelenterata, Echinodermata und Molluscoidea. R. Oldenbourg, Muenchen und Leipzig, 765 p.Google Scholar