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Journal articles on the topic 'Labyrinthodontia'

Author: Grafiati

Published: 4 June 2021

Last updated: 24 January 2023

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1

Warren, A. A. "Two long-snouted temnospondyls (Amphibia, Labyrinthodontia) from the Triassic of Queensland." Alcheringa: An Australasian Journal of Palaeontology 9, no. 4 (January 1985): 293–95. http://dx.doi.org/10.1080/03115518508618974.

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2

Olson, Everett C. "An eryopid (Amphibia: Labyrinthodontia) from the Fort Sill fissures, Lower Permian, Oklahoma." Journal of Vertebrate Paleontology 11, no. 1 (March 28, 1991): 130–32. http://dx.doi.org/10.1080/02724634.1991.10011379.

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3

Warren, Anne, and Trevor Black. "A new rhytidosteid (Amphibia, Labyrinthodontia) from the Early Triassic Arcadia Formation of Queensland, Australia, and the relationships of Triassic temnospondyls." Journal of Vertebrate Paleontology 5, no. 4 (December 1985): 303–27. http://dx.doi.org/10.1080/02724634.1985.10011868.

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4

Kohl, Martin S., and Jonathan R. Bryan. "A new Middle Pennsylvanian (Westphalian) amphibian trackway from the Cross Mountain Formation, East Tennessee Cumberlands." Journal of Paleontology 68, no. 3 (May 1994): 655–63. http://dx.doi.org/10.1017/s002233600002597x.

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An amphibian trackway collected in minespoil from the Cross Mountain Formation in the Cumberland Mountains of East Tennessee represents the first known Middle Pennsylvanian (Westphalian) amphibian trackway from the southeastern United States. The tracks are impressed onto the upper surface of a bed of fine-grained, cross-laminated sandstone and siltstone, deposited in an upper delta plain environment.The trackway was made by an amphibian with a long glenoacetabular distance and low pace-angulation. The imprints show five digits on the pes and four on the manus. Average measurements for the trackway are: stride, 8.4 cm; pace angulation, 76.1° (manus), 63.1° (pes); track width, 5.5 cm (manus), 6.7 cm (pes); glenoacetabular distance, 16.7 cm. The manus impression averages 2.8 cm long by 3.1 cm wide, and the pes averages 3.8 cm long by 3.1 cm wide. A tail drag is conspicuous along the entire length of the trackway and has a minimum radius of curvature of 9 mm.The trackway is assigned to Matthewichnus caudifer n. ichnosp. on the basis of similarities to published material. The trackmaker was probably a temnospondyl labyrinthodont, considering the size of the animal (thus excluding lepospondyls) and the fact that it had a four-digit manus (thus excluding reptiles and anthracosaurian labyrinthodonts).

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5

Warren, Anne, Thomas H. Rich, and Patricia Vickers-Rich. "The last last labyrinthodonts?" Palaeontographica Abteilung A 247, no. 1-4 (December 23, 1997): 1–24. http://dx.doi.org/10.1127/pala/247/1997/1.

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6

Parrington, F. R. "Labyrinthodonts from South Africa." Proceedings of the Zoological Society of London 118, no. 2 (August 21, 2009): 426–45. http://dx.doi.org/10.1111/j.1096-3642.1948.tb00388.x.

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7

Warren, A. A., L. Kool, M. Cleeland, T. H. Rich, and P. Vickers Rich. "An Early Cretaceous labyrinthodont." Alcheringa: An Australasian Journal of Palaeontology 15, no. 4 (January 1991): 327–32. http://dx.doi.org/10.1080/03115519108619027.

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8

Carroll, Robert L. "The origin and early radiation of terrestrial vertebrates." Journal of Paleontology 75, no. 6 (November 2001): 1202–13. http://dx.doi.org/10.1017/s0022336000017248.

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The origin of tetrapods from sarcopterygian fish in the Late Devonian is one of the best known major transitions in the history of vertebrates. Unfortunately, extensive gaps in the fossil record of the Lower Carboniferous and Triassic make it very difficult to establish the nature of relationships among Paleozoic tetrapods, or their specific affinities with modern amphibians. The major lineages of Paleozoic labyrinthodonts and lepospondyls are not adequately known until after a 20–30 m.y. gap in the Early Carboniferous fossil record, by which time they were highly divergent in anatomy, ways of life, and patterns of development. An even wider temporal and morphological gap separates modern amphibians from any plausible Permo-Carboniferous ancestors. The oldest known caecilian shows numerous synapomorphies with the lepospondyl microsaur Rhynchonkos. Adult anatomy and patterns of development in frogs and salamanders support their origin from different families of dissorophoid labyrinthodonts. The ancestry of amniotes apparently lies among very early anthracosaurs.

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9

Panchen, A. L. "The axial skeleton of the labyrinthodont Eogyrinus attheyi." Journal of Zoology 150, no. 2 (August 20, 2009): 199–222. http://dx.doi.org/10.1111/j.1469-7998.1966.tb03004.x.

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10

Lucas, Spencer G., and Adrian P. Hunt. "A review of Triassic labyrinthodont amphibians from China." Geobios 26, no. 1 (1993): 121–28. http://dx.doi.org/10.1016/s0016-6995(93)80012-g.

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11

Cosgriff, J. W., and S. L. DeFauw. "A capitosaurid labyrinthodont from the Early Scythian of Tasmania." Alcheringa: An Australasian Journal of Palaeontology 11, no. 1 (January 1987): 21–41. http://dx.doi.org/10.1080/03115518708618977.

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12

Sander, Martin P., and Christoph Meyer. "A labyrinthodont jaw fragment from the marine Triassic of the Alps." Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1991, no. 4 (January 4, 1991): 222–32. http://dx.doi.org/10.1127/njgpm/1991/1991/222.

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13

Holmes, Robert. "Functional interpretations of the vertebral structure in paleozoic labyrinthodont amphibians." Historical Biology 2, no. 2 (February 1989): 111–24. http://dx.doi.org/10.1080/08912968909386495.

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14

Buffetaut, Eric, Lertsin Raksaskulwong, Varavudh Suteethorn, and Haiyan Tong. "First post-Triassic temnospondyl amphibians from the Shan-Thai block: intercentra from the Jurassic of peninsular Thailand." Geological Magazine 131, no. 6 (November 1994): 837–39. http://dx.doi.org/10.1017/s0016756800012899.

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AbstractTwo temnospondyl intercentra from non-marine middle Jurassic rocks at Mab Ching, in the southern peninsula of Thailand, are the first remains of post-Triassic labyrinthodont amphibians to be reported from the Shan-Thai block. They closely resemble an intercentrum recently reported from the middle Jurassic of the Khorat Plateau of northeastern Thailand, which is part of the Indochina block. Although the Mab Ching specimens are too fragmentary to warrant a precise identification, they confirm that temnospondyl amphibians were widespread on the various Asian continental blocks in the Jurassic.

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15

Wood-ward, A. Smith. "11. On Two New Labyrinthodont Skulls of the Genera Capitosaurns and Aphaneramma." Proceedings of the Zoological Society of London 74, no. 3 (July 7, 2010): 170–76. http://dx.doi.org/10.1111/j.1469-7998.1904.tb08328.x.

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16

Novikov, I. V. "New Data on Trematosauroid Labyrinthodonts of Eastern Europe: 5. Genus Thoosuchus Efremov, 1940." Paleontological Journal 55, no. 4 (July 2021): 429–37. http://dx.doi.org/10.1134/s0031030121040110.

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17

Novikov, I. V. "New data on Trematosauroid labyrinthodonts of Eastern Europe: 1. Genus Inflectosaurus Shishkin, 1960." Paleontological Journal 41, no. 2 (April 2007): 167–74. http://dx.doi.org/10.1134/s0031030107020074.

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18

Novikov, I. V. "New data on trematosauroid labyrinthodonts of Eastern Europe: 4. Genus Benthosuchus Efremov, 1937." Paleontological Journal 46, no. 4 (July 2012): 400–411. http://dx.doi.org/10.1134/s0031030112040089.

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19

Martin, L. D., and Dan Merriam. "A Labyrinthodont Amphibian from the Margin of the Pennsylvanian Epicontinental Sea in Kansas." Transactions of the Kansas Academy of Science 114, no. 3 & 4 (September 2011): 273–76. http://dx.doi.org/10.1660/062.114.0311.

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20

Buffetaut, Eric, Haiyan Tong, and Varavudh Suteethorn. "First post-Triassic labyrinthodont amphibian in South East Asia: a temnospondyl intercentrum from the Jurassic of Thailand." Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1994, no. 7 (July 13, 1994): 385–90. http://dx.doi.org/10.1127/njgpm/1994/1994/385.

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21

Akerman, K., and A. Rozefelds. "Message in a bottle : a tale of two Triassic temnospondyl (labyrinthodont) femora from Tasmania." Papers and Proceedings of the Royal Society of Tasmania 145 (2011): 5–7. http://dx.doi.org/10.26749/rstpp.145.5.

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22

Novikov, I. V. "New data on trematosauroid labyrinthodonts of Eastern Europe: 2. Trematosaurus galae sp. nov.: Cranial morphology." Paleontological Journal 44, no. 4 (July 2010): 457–67. http://dx.doi.org/10.1134/s003103011004012x.

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23

Novikov, I. V. "New data on trematosauroid labyrinthodonts of Eastern Europe: 3. Qantas samarensis gen. et sp. nov." Paleontological Journal 46, no. 2 (March 2012): 177–86. http://dx.doi.org/10.1134/s0031030112020098.

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24

Rocek, Zbynek. "Origin and evolution of the frontoparietal complex in anurans." Amphibia-Reptilia 9, no. 4 (1988): 385–403. http://dx.doi.org/10.1163/156853888x00062.

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AbstractThe frontoparietal is a unique feature of anurans, not only if this group is compared with other amphibians, but also with other vertebrates as well. It is often used as an important character in anuran systematics. However, little is still known about its evolutionary origin and significance. This is the reason why its state in Triadobatrachus and fossil anurans was examined, and compared with the condition in osteolepiforms and labyrinthodonts. Besides that also an information from the larval development was taken into consideration. It follows from all these data that the frontoparietal in adult anurans is a compound bone; the originally independent elements forming it (frontals, parietals, and some other ones) either coalesced with each other, or have disappeared during the course of evolution, often in convergent fashion. As the original state is better reflected in early developmental stages, one may suppose that larval condition also better reflects phylogenetic relations than the definitive bone complex of adults.

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25

Andrews, S. M., and R. L. Carroll. "The Order Adelospondyli: Carboniferous lepospondyl amphibians." Transactions of the Royal Society of Edinburgh: Earth Sciences 82, no. 3 (1991): 239–75. http://dx.doi.org/10.1017/s0263593300005332.

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AbstractThe Order Adelospondyli, an isolated group of amphibians from the Carboniferous of the Edinburgh area, is redescribed and distinguished from other early tetrapods. Although systematics of genera and species is unsatisfactory, the group seems monophyletic, since as far as they are known, all conform to a single overall structural plan. There is an entire skull roof with a reduced complement of bones in an unique pattern, a highly characteristic marginal dentition, a massive hyoid apparatus, at least 70 holospondylous trunk vertebrae, and (like some other Lower Carboniferous tetrapods) a shoulder region with a heavy dermal girdle but no trace of ossified limbs or endochondral girdle. Adelogyrinids show no special affinity with other Palaeozoic amphibians: the vertebral characters in which they resemble microsaurs, lysorophids, aïstopods, and nectrideans may have evolved more than once among early tetrapods, and the shoulder girdle and neural arch characters shared with labyrinthodonts are probably primitive. The adelogyrinids thus illustrate the more general problems of establishing interrelationships among early tetrapods. Their way of life is discussed.

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26

Pledge, Neville S. "First South Australian Labyrinthodont: A Possible Chigutisaurid Stereospondyl Amphibian from the Late Triassic at Leigh Creek." Transactions of the Royal Society of South Australia 137, no. 1 (January 2013): 127–34. http://dx.doi.org/10.1080/3721426.2013.10887176.

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27

"On the amphibian Crassigyrinus scoticus watson from the carboniferous." Philosophical Transactions of the Royal Society of London. B, Biological Sciences 309, no. 1140 (April 30, 1985): 505–68. http://dx.doi.org/10.1098/rstb.1985.0095.

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The holotype of Crassigyrinus scoticus Watson from the Viséan (Lower Carboniferous) of Edinburgh shows the side of the skull of a very primitive amphibian with fish-like proportions, an osteolepiform fish configuration of bones round the nostril and a preopercular bone on the cheek. ‘ Macromerium scoticum ’ Lydekker from the same locality and horizon proves to be a Crassigyrinus mandibular ramus. This is corroborated by discovery of a skull and anterior skeleton of Crassigyrinus from the Namurian (basal Upper Carboniferous) of Cowdenbeath, Fife. The skull of Crassigyrinus is also shown to have a loosely articulated basioccipital which did not form a finished occipital condyle and a mandible with coronoid teeth. However, it shares a number of derived (synapomorph) characters with the anthracosauroid amphibia of the Carboniferous and early Permian, notably the characteristic tabular horn, the probable absence of posttemporal fossae, the nature of the dermal ornament, the histology of the teeth and a true basipterygoid articulation. The last character may also indicate relations to loxommatid and seymouriamorph amphibia and amniotes. The pattern of bones of the Crassigyrinus skull table, however, is the primitive tetrapod (‘temnospondyl’) one. The postcranial skeleton is both primitive and degenerate. The vertebrae each have a single crescent-shaped centrum (‘intercentrum ’) and neural arches as poorly ossified, unfused bilateral halves. Prezygapophyses are unbuttressed facets and postzygapophyses totally lacking. There is room for a virtually unconstricted notochord. The diameter of the centra increases posteriorly from the small (partly reconstructed) atlas-axis complex. Ribs are long, well-ossified and cylindrical, but lack well-ossified rib-heads. The fore-limb is minute, with a typical primitive tetrapod humerus, which, however, retains some foramina otherwise seen only in Ichthyostega and fishes. The elongate ventral scales are unlike those of any ‘labyrinthodont’ amphibia. It is suggested that the apparent ‘otic notches’ of Crassigyrinus may mark the position of persistent spiracles, while the stapes, not preserved in any specimen, may have been like that known in the Coal Measure anthracosaurs and in the primitive temnospondyl Greererpeton . Combined with an air-filled spiracular cleft the stapes could have been tuned to underwater rather than aerial hearing. Crassigyrinus appears to have been a large Amphiuma -like underwater predator. A case is made for the ‘sister-group’ relation of Crassigyrinus to the anthracosauroids and a cladogram presented of the subgroups involved. It is, however, difficult to make a case for the close relationship of Crassigyrinus and the Seymouriamorpha and the closeness of relationship of the latter to anthracosauroids is questioned. Crassigyrinus shares several primitive characters with Ichthyostega , but they are only distantly related, so that the loss of those characters in all other tetrapods must have been polyphyletic. There are other characters in which one or the other is clearly the more primitive, but the polarity of a number of alternative character states in the two genera is equivocal. The cladistic use of out-group comparison is impotent to solve the problem because rival sister-groups for the Tetrapoda have been proposed using, inter alia , the disputed characters.

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