Las cáscaras de huevo de cocodrilo más antiguas de Australia
Palabras clave:
Cáscaras de huevo, Mekosuchinae, Eoceno, Australia, Biología reproductivaResumen
Mekosuchine crocodiles were a significant clade of endemic predators
from Australia during the Cenozoic. Despite there is an abundant skeletal
fossil record of this group, there has been no fossil evidence relating to
their reproductive biology. Here, we describe Australia’s oldest crocodylian
eggshells from the early Eocene Tingamarra Local Fauna from Murgon
(Australia). These eggshells are tentatively attributed to the genus Kambara,
copious in the Tingamarra deposits and being the only crocodylian genus
described in the area.
Descargas
Referencias
Cook, A.G., Jell, J.S., Archer, M., Black, K., Cohen, B.E., Godthelp, H., Hand, S.J., Withnall, I.W., y Vasconcelos, P.M. (2013). “Paleogene and Neogene.”En P.A. Jell (Ed.), Geology of Queensland, pp. 577-652. Brisbane (Australia): Queensland Government.
Cranfield, L.C., Donchak, P.J.T., Randall, R.E., y Crosby, G.C. (2001). “Geology and mineralisation of the Yarraman Subprovince, south-east
Queensland”. Queensland geology 10, pp. 1-182.
Godthelp, H., Archer, M., Cifelli, R., Hand, S.J., y Gilkeson, C.E. (1992). “Earliest known Australian Tertiary mammal fauna”. Nature 356 (6371), pp.
514-515.
Hirsch, K.F., (1985). Fossil crocodilian eggs from the Eocene of Colorado. Journal of Paleontology 59 (3)l, p.531-542.
Jackson, F.D., y Varricchio, D.J. (2016). “Fossil egg and eggshells from the Upper Cretaceous Hell Creek Formation, Montana.” Journal of Vertebrate Paleontology 36 (5), pp. 1-15.
Long, J.A., Archer, M., Flannery, T., y Hand, S. (2002). Prehistoric Mammals of Australia and New Guinea: One Hundred Million Years of Evolution. Baltimore: Johns Hopkins University Press.
Mead, J.I., Steadman, D.W., Bedford, S.H., Bell, C.J., y Spriggs, M. (2002).“New extinct mekosuchine crocodile from Vanuatu, South Pacific”. Copeia 3, pp. 632-641.
Mikhailov, K.E. (1997). “Fossil and recent eggshell in Amniotic Vertebrates: Fine structure, comparative morphology and Classification”. Special Papers in Paleontology 56, pp. 1-79.
Molnar, R.E. (1981). “Pleistocene ziphodont crocodilians of Queensland.” Records of the Australian Museum 33 (19), pp. 803-834.
Marzola, M., Russo, J., y Mateus, O. (2015). “Identification and comparison of modern and fossil crocodilian eggs and eggshell structures”. Historical Biology 27 (1), pp. 115-133.
Moreno-Azanza, M., Bauluz, B., Canudo, J.I., Puertolas-Pascual, E., y Sellés, A.G. (2014). “A re-evaluation of aff. Megaloolithidae eggshell fragments from the uppermost Cretaceous of the Pyrenees and implications for crocodylomorph eggshell structure”. Historical Biology 26 (2), pp. 195-205.
Murphy, P.R., Schwarzbock, H., Cranfield, L.C., Withnall, W., y Murray, C.G. (1976). Geology of the Gympie 1:250,000 sheet area. Geological Survey of Queensland Report 96, pp. 1-157.
Rasband, W.S. (1997-2012). ImageJ. Bethesda: U. S. National Institutes of Health.
Rio, J.P., y Mannion, P.D. (2021). “Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem”. PeerJ 9, e12094.
Ristevski, J., Willis, P.M.A., Yates, A.M., White, M.A., Hart, L.J., Stein, M.D., Price, G.J. y Salisbury S.W. (2023). Migrations, diversifications and extinctions: the evolutionary history of crocodyliforms in Australasia. Alcheringa: An Australasian Journal of Palaeontology 47(4), pp. 370-415.
Salisbury, S.W., y Willis, P.M.A. (1996). “A new crocodylian from the Early Eocene of south-eastern Queensland and a preliminary investigation of
the phylogenetic relationships of crocodyloids”. Alcheringa 20 (3), pp. 179-226.
Scanlon, J. (2014). “Giant terrestrial reptilian carnivores of Cenozoic Australia.” En A.S. Glen y C.R. Dickman (Ed.), Carnivores of Australia: Past,
Present and Future, pp. 29-53, Melbourne: CSIRO Publishing.
Sobbe, I.H., Price, G.J., y Knezour, R.A. (2013). “A ziphodont crocodile from the late Pleistocene King Creek catchment, Darling Downs,
Queensland”. Memoirs of the Queensland Museum-Nature 56 (2), pp. 601-606.
Willis, P.M.A. (1993). “Trilophosuchus rackhami gen. et sp. nov., a new crocodilian from the Early Miocene limestones of Riversleigh, northwestern Queensland.” Journal of Vertebrate Paleontology 13 (1), pp. 90-98.
Willis, P.M.A. (1997). “New crocodilians from the late Oligocene White Hunter Site, Riversleigh, northwestern Queensland”. Memoirs of the Queensland Museum 41 (2), pp. 423-438.
Willis, P.M.A., Molnar, R.E., y Scanlon, J.D. (1993). “An early Eocene crocodilian from Murgon, southeastern Queensland”. Kaupia 3, pp. 27- 33.
Willis, P.M.A., y Mackness, B.S. (1996). “Quinkana babarra, a new species of ziphodont mekosuchine crocodile from the Early Pliocene Bluff
Downs Local Fauna, Northern Australia with a revision of the genus”. Proceedings of the Linnean Society of New South Wales 116, pp. 143-151.
Wroe, S. (2002). “A review of terrestrial mammalian and reptilian carnivore ecology in Australian fossil faunas, and factors influencing their diversity: the myth of reptilian domination and its broader ramifications”. Australian Journal of Zoology 50 (1), pp. 1-24.
Descargas
Número
Sección
Licencia
Derechos de autor 2026 Zubía. Revista de ciencias

Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-CompartirIgual 4.0.
Los autores que publican en Zubía conservan los derechos de autor de sus trabajos y autorizan a la revista la primera publicación de los mismos.
Los artículos se publican bajo la licencia Creative Commons Atribución–No Comercial–Compartir Igual (CC BY-NC-SA), que permite su uso, distribución y reproducción en cualquier medio, siempre que se cite adecuadamente la autoría original, no se realice un uso comercial y se mantenga la misma licencia.


