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The pelvic girdle and hind limb of Crassigyrinus scoticus (Lydekker) from the Scottish Carboniferous and the origin of the tetrapod pelvic skeleton

Published online by Cambridge University Press:  03 November 2011

A. L. Panchen  and
T. R. Smithson
A. L. Panchen
Affiliation:
Department of Biology, University of Newcastle upon Tyne, NE1 7RU, U.K.
T. R. Smithson
Affiliation:
Department of Biology, University of Newcastle upon Tyne, NE1 7RU, U.K.
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Abstract

Our knowledge of the primitive and aberrant early tetrapod Crassigyrinus scoticus was based on a partial skull roof and mandibles from the Lower Carboniferous of Gilmerton, Edinburgh, plus a skeleton lacking the hind limb and tail from the Namurian, basal Upper Carboniferous, of Cowdenbeath, Fife. New specimens from Cowdenbeath include the pelvic girdle, presacral and sacral rib and most of the hind limb. The ilium of the girdle had a firm articulation with the vertebral column via the sacral rib. The ischium, separated from the ilium by cartilage, was, like that found with the Cowdenbeath skeleton, ornamented as though a dermal bone. No pubis is preserved. The femur lacks an adductor crest, but has a strongly developed internal trochanter. Tibia and fibula are short stout bones, but axial torsion is present in the fibula rather than the tibia. This, and the structure of the femur, suggests a swimming rather than a walking limb. Probable metatarsals and phalanges are recorded. A skeletal reconstruction and a life restoration of Crassigyrinus are presented in the light of its reconstructed anatomy and physiology.

The ornamentation of the ischium of Crassigyrinus, and that of the colosteid Greererpeton, suggests that the bone may be at least in part dermal. Its homology wth the pelvic fin basal scute of osteolepiform fishes is proposed and the homologies of pectoral and pelvic fins, and thus limbs, discussed.

Keywords

amphibiabasal scutesfunctional morphologyhomologyischiumOsteolepiformes
Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 81 , Issue 1 , 1990 , pp. 31 - 44
Copyright
Copyright © Royal Society of Edinburgh 1990

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References

Andrews, S. M. 1973. Interrelationships of crossopterygians. In Greenwood, P. H., Miles, R. S. & Patterson, C. (eds) Interrelationships of Fishes, 138–177. London: Linnean Society.Google Scholar
Andrews, S. M., Browne, M. A. E., Panchen, A. L. & Wood, S. P. 1977. Discovery of amphibians in the Namurian (Upper Carboniferous) of Fife. NATURE LONDON 265, 529–532.CrossRefGoogle Scholar
Andrews, S. M. & Westoll, T. S. 1970. The postcranial skeleton of Eusthenopteron foordi Whiteaves. TRANS R SOC EDINBURGH 68, 207–329.CrossRefGoogle Scholar
Boyd, M. J. F. & Turner, S. 1980. Catalogue of the Carboniferous amphibians in the Hancock Museum, Newcastle upon Tyne. TRANS NAT HIST SOC NORTHUMBERLAND 46, 1–24.Google Scholar
Clack, J. A. 1987. Pholiderpeton scutigerum Huxley, an amphibian from the Yorkshire Coal Measures. PHILOS TRANS R SOC LONDON B318, 1–107.Google Scholar
Davidoff, M. von 1879. Beiträge zur vergleichenden Anatomie der hinteren Gliedmasse der Fische. Pt. 1. MORPHOL JAHRB 5, 450–520.Google Scholar
Davidoff, M. von 1880. Ibid Pt. 11. MORPHOL JAHRB 6, 433–468.Google Scholar
Davidoff, M. von 1883. Ibid Pt 111. MORPHOL JAHRB 19,117–162.Google Scholar
Duellman, W. E. & Trueb, L. 1986. Biology of Amphibians. New York: McGraw-Hill.Google Scholar
Fritsch, A. 1889. Fauna der Gaskohle und der Kalksteine der Permformation Böhmens Band II (1885–1889). Prague.Google Scholar
Gegenbaur, C. 1898. Vergleichenden Anatomie der Wirbeltiere. (2 vols). Leipzig: W. Engelmann.Google Scholar
Godfrey, S. J. 1989. The postcranial skeletal anatomy of the Carboniferous tetrapod Greererpeton burkemorani Romer 1969. PHILOS TRANS R SOC LONDON B323, 75–133.Google Scholar
Goodrich, E. S. 1930. Studies on the Structure and Development of Vertebrates. London: McMillan.CrossRefGoogle Scholar
Holmes, R. 1984. The Carboniferous amphibian Proterogyrinus scheelei Romer, and the early evolution of tetrapods. PHILOS TRANS R SOC LONDON B306, 431–527.Google Scholar
Jarvik, E. 1944. On the dermal bones, sensory canals and pitlines of the skull in Eusthenopteron foordi Whiteaves, with remarks on E. säve-söderberghi Jarvik. K SVENSKA VETENSKAPAKAD HANDL (3) 21(3), 1–48.Google Scholar
Jarvik, E. 1948. On the morphology and taxonomy of the Middle Devonian osteolepid fishes of Scotland. K SVENSKA VETENSKAPAKAD HANDL (3) 25(1), 1–301.Google Scholar
Jarvik, E. 1952. On the fish-like tail in the ichthyostegid stegocephalians with descriptions of a new stegocephalian and a new crossopterygian from the Upper Devonian of East Greenland. MEDD GRONLAND 114(12), 1–90.Google Scholar
Jarvik, E. 1980. Basic structure and Evolution of Vertebrates (2 vols). London: Academic Press.Google Scholar
Land, D. H. 1974. Geology of the Tynemouth District (Explanation of One-Inch Geological Sheet 15, New Series). London: Institute of Geological Sciences.Google Scholar
Lydekker, R. 1890. On two new species of Labyrinthodonts. Q J GEOL SOC LONDON 46, 289–294.CrossRefGoogle Scholar
Milner, A. R., Smithson, T. R., Milner, A. C., Coates, M. I. & Rolfe, W. D. I. 1986. The search for early tetrapods. MOD GEOL 10, 1–28.Google Scholar
Noble, G. K. 1931. The biology of the Amphibia. New York: McGraw-Hill.CrossRefGoogle Scholar
Panchen, A. L. 1964. The cranial anatomy of two Coal Measure anthracosaurs. PHILOS TRANS R SOC LONDON B247, 593–637.Google Scholar
Panchen, A. L. 1970. Teil 5a, Anthracosauria. Handbuch der Paläoherpetologie. Stuttgart: Fischer.Google Scholar
Panchen, A. L. 1972. The skull and skeleton of Eogyrinus attheyi Watson (Amphibia : Labyrinthodontia). PHILOS TRANS R SOC LONDON B263, 279–326.Google Scholar
Panchen, A. L. 1973. On Crassigyrinus scoticus Watson, a primitive amphibian from the Lower Carboniferous of Scotland. PALAEONTOLOGY 16, 179–193.Google Scholar
Panchen, A. L. 1975. A new genus and species of anthracosaur amphibian from the Lower Carboniferous of Scotland and the status of Pholidogaster pisciformis Huxley. PHILOS TRANS R SOC LONDON B269. 581–640.Google Scholar
Panchen, A. L. 1977. The origin and early evolution of tetrapod vertebrae. In Andrews, S. M.Miles, R. S. & Walker, A. D. (eds) Problems in Vertebrate Evolution, 289–318. London: Academic Press.Google Scholar
Panchen, A. L. 1980. The origin and relationships of the anthracosaur amphibia from the late Palaeozoic. In Panchen, A. L. (ed.) The terrestrial environment and the origin of land vertebrates, 319–350. SYSTEMATICS ASSOC SPEC VOL 15. London: Academic Press.Google Scholar
Panchen, A. L. 1985. On the amphibian Crassigyrinus scoticus Watson from the Carboniferous of Scotland. PHILOS TRANS R SOC LONDON B309, 505–568.Google Scholar
Panchen, A. L. & Smithson, T. R. 1987. Character diagnosis, fossils and the origin of tetrapods. BIOL REV 62, 341–438.CrossRefGoogle Scholar
Panchen, A. L. & Smithson, T. R. 1988. The relationships of the earliest tetrapods. In Benton, M. J. (ed.) The Phylogeny and Classification of Tetrapods. Vol. 1: Amphibians, Reptiles and Birds, 1–32. OxfordUniversity Press.Google Scholar
Patterson, C. 1982. Morphological characters and homology. In Joysey, K. A. & Friday, A. E. (eds) Problems of Phylogenetic Reconstruction, 21–74. London: Academic Press.Google Scholar
Rackoff, J. S. 1980. The origin of the tetrapod limb and the ancestry of vertebrates. In Panchen, A. L. (ed.) The terrestrial environment and the origin of land vertebrates, 255–292. SYSTEMATICS ASSOC SPEC VOL 15. London: Academic Press.Google Scholar
Romer, A. S. 1922. The locomotor apparatus of certain primitive and mammal-like reptiles. BULL AM MUS NAT HIST 46, 517–606.Google Scholar
Romer, A. S. 1956. Osteology of the reptiles. Chicago: University Press.Google Scholar
Romer, A. S. 1957. The appendicular skeleton of the Permian embolomerous amphibian Archeria. CONTRIB MUS GEOL UNIV MICHIGAN 13, 103–159.Google Scholar
Rosen, D. E., Forey, P. L., Gardiner, B. G. & Patterson, C. 1981. Lungfishes, tetrapods, paleontology and pleisomorphy. BULL AM MUS NAT HIST 167, 159–276.Google Scholar
Roth, V. L. 1988. The biological basis of homology. In Humphries, C. J. (ed.) Ontogeny and Systematics, 1–26. London: British Museum (Natural History).Google Scholar
Smithson, T. R. 1980a. An early tetrapod fauna from the Namurian of Scotland. In Panchen, A. L. (ed.) The terrestrial environment and the origin of land vertebrates, 407–438. SYSTEMATICS ASSOC SPEC VOL 15. London: Academic Press.Google Scholar
Smithson, T. R. 1980b. A new labyrinthodont amphibian from the Carboniferous of Scotland. PALAEONTOLOGY 23, 915–923.Google Scholar
Smithson, T. R. 1982. The cranial morphology of Greererpeton burkemorani Romer (Amphibia :Temnospondyli). ZOOL J LINN SOC 76,29–90.CrossRefGoogle Scholar
Smithson, T. R. 1983. The anthracosaur amphibia from the Namurian of Scotland. Ph.D. Thesis, University of Newcastle upon Tyne.Google Scholar
Smithson, T. R. 1985a. The morphology and relationships of the Carboniferous amphibian Eoherpeton watsoni Panchen. ZOOL J LINN SOC 85, 317–410.CrossRefGoogle Scholar
Smithson, T. R. 1985b. Scottish Carboniferous amphibian localities. SCOTT J GEOL 21, 123–142.CrossRefGoogle Scholar
Smithson, T. R. 1986. A new anthracosaur amphibian from the Carboniferous of Scotland. PALAEONTOLOGY 29, 603–628.Google Scholar
Stensiö, E. A. 1921. Triassic fishes from Spitzbergen Pt. 1. Vienna: Holzhausen.CrossRefGoogle Scholar
Stensiö, E. A. 1925. Triassic fishes from Spitzbergen Pt. 2. K SVENSKA VETENSKAPAKAD HANDL (3) 1(1), 1–261.Google Scholar
Tilley, E. H. 1971. Morphology and taxonomy of the Loxommatoidea (Amphibia). Ph.D. Thesis, University of Newcastle upon Tyne.Google Scholar
Watson, D. M. S. 1926. Croonian Lecture—The evolution and origin of the Amphibia. PHILOS TRANS R SOC LONDON B214, 189–257Google Scholar
Watson, D. M. S. 1929. The Carboniferous Amphibia of Scotland. PALAEONTOL HUNG 1, 219–252.Google Scholar
Westoll, T. S. 1943. The origin of the primitive tetrapod limb. PROC R SOC LONDON B131, 373–393.Google Scholar
Weidersheim, R. 1892. Gliedmassenskelet der Wirbeltiere. Jena: Gustav Fischer.Google Scholar