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Aspects of the postcranial skeleton of the Lower Permian lungfish, Gnathorhiza

Published online by Cambridge University Press:  19 May 2016

Walter W. Dalquest ,
M. John Kocurko  and
John V. Grimes
Walter W. Dalquest
Affiliation:
Departments of Biology and Geology, Midwestern State University, Wichita Falls, Texas 76308
M. John Kocurko
Affiliation:
Departments of Biology and Geology, Midwestern State University, Wichita Falls, Texas 76308
John V. Grimes
Affiliation:
Departments of Biology and Geology, Midwestern State University, Wichita Falls, Texas 76308
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Abstract

A newly discovered locality of aestivation burrow casts containing the lungfish, Gnathorhiza serrata, is reported from the early Permian Arroyo Formation of Wilbarger County, north-central Texas. Remains preserved in the burrow casts provide sections of mummified Gnathorhiza and new information about the postcranial skeleton of this fish. Scales of Gnathorhiza resemble those of the modern lungfishes such as Lepidosiren in their microanatomy. No traces of paddle-like pectoral or pelvic fins were found and paired fins of Gnathorhiza may have resembled those of Lepidosiren. The axial skeleton and median fins of Gnathorhiza seem to resemble those of Lepidosiren except that the tail area and caudal fin of Gnathorhiza were stout and strong rather than slender and tapering. Gnathorhiza, which aestivated tail-down in its burrow, may have required a stout tail for support.

Type
Research Article
Information
Journal of Paleontology , Volume 63 , Issue 6 , November 1989 , pp. 919 - 930
Copyright
Copyright © The Paleontological Society 

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References

Berman, D. S. 1976a. Cranial morphology of the Lower Permian lungfish Gnathorhiza (Osteichthyes: Dipnoi). Journal of Paleontology, 50:1020–1033.Google Scholar
Berman, D. S. 1976b. Occurrence of Gnathorhiza (Osteichthyes: Dipnoi) in aestivation burrows in the Lower Permian of New Mexico with description of a new species. Journal of Paleontology, 50:1034–1039.Google Scholar
Brien, P. 1962. Etude de la formation, de la structure des ecailles des Dipneustes actuels et de leur comparison avec les autres types d'ecailles des Poissons. Annates du Musee Royale d'Afrique Centrale, Ser. 8, 108:53–129.Google Scholar
Carlson, K. J. 1968. The skull morphology and estivation burrows of the Permian lungfish, Gnathorhiza serrata . Journal of Geology, 76:641–663.Google Scholar
Dalquest, W. W., and Carpenter, R. M. 1975. A new discovery of fossil lungfish burrows. Texas Journal of Science, 26:611.Google Scholar
Dubiel, R. F., Blodgett, R. H., and Brown, T. M. 1987. Lungfish burrows in the Upper Triassic Chinle and Dolores Formations, Colorado Plateau. Journal of Sedimentary Petrology, 57:512–521.Google Scholar
Hussakof, L. 1911. The Permian fishes of North America. Carnegie Institute of Washington Publication, 146:155–175.Google Scholar
McAllister, J. A. 1988. Lungfish burrows in the Upper Triassic Chinle and Dolores Formations, Colorado Plateau—comments on the recognition criteria of fossil lungfish burrows. Journal of Sedimentary Petrology, 58:365–369.Google Scholar
Meinke, D. K. 1987. Morphology and evolution of the dermal skeleton in lungfishes, p. 133–149. In The biology and evolution of lungfishes, Journal of Morphology, Supplement 1.Google Scholar
Meunier, F. J., and Francois, Y. 1980. L'Organisation spatiale des fibres collagenes et la mineralisation des ecailles des Dipneustes actuels. Bulletin Societe Zoologique de France, 105:215–226.Google Scholar
Milliman, J. D. 1974. Marine Carbonates. Springer-Verlag, Berlin, 375 p.Google Scholar
Olson, E. C. 1951. Fauna of the upper Vale and Choza. 1–5. Fieldiana, Geology, 10:89–128.Google Scholar
Olson, E. C., and Daly, E. 1972. Notes on Gnathorhiza (Osteichthyes, Dipnoi). Journal of Paleontology, 46:371–376.Google Scholar
Romer, A. S., and Olson, E. C. 1954. Aestivation in a Permian lungfish. Museum of Comparative Zoology, Brevoria, 30:1–8.Google Scholar
Romer, A. S., and Smith, H. J. 1934. American Carboniferous dipnoans. Journal of Geology, 42:700–719.Google Scholar
Schultze, H. P. 1985. Marine to onshore vertebrates in the Lower Permian of Kansas and their paleoenvironmental implications. University of Kansas Paleontological Contributions, 113:1–18.Google Scholar