First post-Mesozoic record of Crocodyliformes from Chile

• Autorzy: Walsh S A , Suarez M.
• Języki publikacji: EN

Abstrakty

EN

Fossil crocodilians are well known from vertebrate bearing localities in South America, but the last record of the group in Chile is from the Cretaceous. No living crocodilians occur in Chile today, and the timing of their disappearance from the country is unknown. We provide the first post−Mesozoic report of crocodilian remains from late Miocene marine deposits of the Bahía Inglesa Formation, northern Chile. The fragmentary material provides proof that Crocodiliformes were present in Chile until at least seven million years ago. We suggest that late Neogene climatic cooling and changes in South American palaeophysiography caused the extinction of the group in Chile.

Słowa kluczowe

EN

Mesozoic; Neogene; Crocodyliformes; extinction; Bahia Inglesa Formation; crocodile; Chile; paleontology; climate change

• Wydawca: -
• Czasopismo: Acta Palaeontologica Polonica
• Rocznik: 2005
• Tom: 50
• Numer: 3
• Opis fizyczny: p.595-600,fig.,ref.

Twórcy

autor

Walsh S A

• Natural History Museum, Cromwell Road, London, U.K.

autor

Suarez M.

Bibliografia

• Benton, M.J. and Clark J.M. 1988. Archosaur phylogeny and the relationships of the Crocodylia. In: M.J. Benton (ed.), The Phylogeny and Classification of the Tetrapods. Volume 1: Amphibians, Reptiles and Birds. Systematics Association Special Volume 35A: 295–338.
• Billups, K., Ravelo, A.C., Zachos, J.C., and Norris, R.D. 1999. Link between oceanic heat transport, thermohaline circulation, and the Intertropical Convergence Zone in the early Pliocene Atlantic. Geology 27: 319–322.
• Brochu, C.A. 1999. Phylogenetics, taxonomy, and historical biogeography of Alligatoroidea. Journal of Vertebrate Paleontology 11 (Supplement to No. 4), Memoir 6: 9–100.
• Brochu, C.A. and Rincon, A.D. 2004. A gavialoid crocodylian from the Lower Miocene of Venezuela. In: M.R. Sánchez−Villagra and J.A. Clack (eds.), Fossils of the Miocene Castillo Formation, Venezuela: Contributions on Neotropical Palaeontology. Special Papers in Palaeontology 71: 61–80.
• Buffetaut, E. 1982. Systématique, origine et évolution des Gavialidae Sud−Americans. Geobios, Mémoire spécial 6: 127–140.
• Chong, G. and Gasparini, Z.B. 1972. Presencia de Crocodilia marinos en el Jurásico de Chile. Revista de la Asociación Geologico de Argentina 24: 406–409.
• Flower, B.P. and J.P. Kennett. 1994. The middle Miocene climatic transition: East Antarctic ice sheet development, deep ocean circulation and global carbon cycling. Palaeogeography, Palaeoclimatology, Palaeoecology 108: 537–555.
• Gasparini, Z. and Díaz, G.C. 1977. Metriorhynchus casamiquelai n. sp. (Crocodilia, Thalattosuchia), a marine crocodile from the Jurassic (Callovian) of Chile, South America. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 153: 341–360.
• Gasparini, Z. 1980. Un nuevo cocodrilo marino (Crocodylia, Metriorhynchidae) del Caloviano del norte de Chile. Ameghiniana 17: 97–103.
• Gasparini, Z. 1984. New Tertiary Sebosuchia (Crocodylia: Mesosuchia) from Argentina. Journal of Vertebrate Paleontology 4: 85–95.
• Gasparini, Z. 1996. Biogeographic evolution of the South American crocodyliforms. Münchner geowissenschaftliche Abhandlungen A 30: 159–184.
• Godoy, E., Marquardt, C., and Blanco, N. 2003. Geología de la Carta Caldera, Región de Atacama. Carta Geológica de Chile. Serie Geología Básica 1, mapa escala 1:100.000. Servicio Nacional de Geología y Minería, Santiago.
• Haug, G.H., Tiedemann, R., Zahn, R., and Ravelo, A.C. 2001. Role of Panama uplift on oceanic freshwater balance. Geology 29: 207–210.
• Hinojosa, L.F. and Villagran, C. 1997. Historia de los bosques del sur de Sudamérica, I: Antecedents paleobotánicos, geológicos y climáticos del Terciario del cono sur de América. Revista Chilena de Historia Natural 70: 225–239.
• Ibaraki, M. 1995. Neogene chronostratigraphy of biosiliceous sediments on the Pacific coast of South America based on planctonic foraminifera. Reports of the Faculty of Science, Shizuoka University 29: 63–71.
• Ibaraki, M. 2001. Neogene planktonic foraminifera of the Caleta Herradura de Mejillones section in northern Chile: Biostratigraphy and paleoceanographic implications. Micropaleontology 47: 257–267.
• Kay, R.F., Madden, R.H., Cifelli, R.L., and Flynn J.J. 1997. Vertebrate Paleontology in the Neotropics: the Miocene Fauna of La Venta, Colombia. 592 pp. Smithsonian Institution Press, Washington.
• Kraus, R. 1998. The cranium of Piscogavialis jugaliperforatus n. gen., n. sp. (Gavialidae, Crocodylia) from the Miocene of Peru. Paläontologische Zeitschrift 72: 389–406.
• Langston, W. 1965. Fossil crocodilians from Colombia and the Cenozoic history of the Crocodilia in South America. University of California Publications in Geological Sciences 52: 1–157.
• Langston, W. and Gasparini Z. 1997. Crocodilians, Gryposuchus, and the South American gavials. In: R.F. Kay, R.H. Madden, R.L. Cifelli, and J.J. Flynn (eds.), Vertebrate Paleontology in the Neotropics: the Miocene Fauna of La Venta, Colombia, 113–154. Smithsonian Institution Press, Washington.
• Long, D.J. 1993. Late Miocene and Early Pliocene fish assemblages from the north central coast of Chile. Tertiary Research 14: 117–126.
• Lopez, G.M. 1997. Paleogene faunal assemblage from Antofagasta de la Sierra (Catamarca Province, Argentina). Palaeovertebrata 26 (1–4): 61–81.
• Lyman, R.L. 1994. Vertebrate Taphonomy. Cambridge Manuals in Archaeology. 524 pp. Cambridge University Press, Cambridge.
• Marquardt, C., Blanco, N., Lavenu, A., Godoy, L., Ortlieb, L. Marchant, M., and Guzmán, N. 2000. Estratigrafía del Cenozoico Superior en el área de Caldera (26°45´–28°S), III Región de Atacama, Chile. Actas del IX Congreso Geológico Chileno 1 (3): 504–508.
• Martínez−Pardo, R. and Martínez−Guzmán, R. 1997. Neogene Southeast Pacific paleoceanography, the opening of the Drake Passage and the Humboldt Current history: the Chilean micropaleontological perspective. VIII Congreso Geologico Chileno, Antofagasta, 525–527.
• Mercado, M. 1977. Avance Geologico de la Hoja Caldera−region de Atacama. Escala 1:250.000. Mapa No. 1. Talleres Gráficos del Instituto Geográfico Militar, Santiago.
• Moulton, T.P., Magnusson, W.E., and Queiroz Melo, M.T. 1999. Growth of Caiman latirostris Inhabiting a Coastal Environment in Brazil. Journal of Herpetology 33: 479–484.
• Muizon, C. de. 1982. Phocid phylogeny and dispersal. Annals of the South African Museum 89: 175–213.
• Muizon, C. de and DeVries, T.J. 1985. Geology and paleontology of late Cenozoic marine deposits in the Sacaco area (Peru). Geologische Rundschau 74: 547–563.
• Rogers, J.J.W. 1993. A History of the Earth. 312 pp. Cambridge University Press, Cambridge.
• Sánchez−Villagra, M.R., Gasparini, Z., Lozsán, R., Moody, J.M., and Uhen, M.D. 2001. New discoveries of vertebrates from a near−shore marine fauna from the Early Miocene of northwestern Venezuela. Paläontologische Zeitschrift 75: 227–231.
• Slansky, M. 1986. Geology of Sedimentary Phosphates. 210 pp. North Oxford Academic Publishers, Oxford.
• Suárez, M.E., Pineda, G., and Torres, T. 2002. Vertebrados continentales de los estratos de Quebrada la Totora, Cretácico Inferior y tardío de Pichasca, IV Región. Actas del Congreso Latinoamericano de Paleontología de Vertebrados 1: 49–50.
• Suárez, M.E. and Marquardt, C. 2003. Revisión preliminar de las faunas de peces elasmobranquios del Mesozoico y Cenozoico de Chile. Actas X Congreso Geológico Chileno, Sesión temática 3, Paleontología. CD−ROM. Universidad de Concepción, Concepción.
• Suárez, M.E., Lamilla J., and Marquardt, C. 2004. Peces Chimariformes (Chondrichytyes, Holocephali) del Neógeno de la Formación Bahía Inglesa (Región de Atacama, Chile). Revista Geológica de Chile 31 (1): 105–117.
• Tsuchi, R., Shuto, T., Takayama, T., Fujiyoshi, A., Koizumi, I., Ibaraki, M., and Martinez, P.R. 1988. Fundamental data on Cenozoic biostratigraphy of Chile. In: R. Tsuchi (ed.), Reports of Andean studies, Shizuoka University−Trans−Pacific Correlation of Cenozoic Geohistory 2, 71–95. Kofune Printing, Shizuoka.
• Walker, A.D. 1970. A revision of the Jurassic Hallopus victor(Marsh) with remarks of the classification of crocodiles. Philosophical Transactions of the Royal Society of London, Series B 257: 322–372.
• Walsh, S.A. 1999. A New Mio−Pliocene bone−bed from north−central Chile. Journal of Vertebrate Paleontology 19 (Supplement to No. 3), Abstracts: 82A.
• Walsh, S.A. 2002. Taphonomy and genesis of the Neogene Bahía Inglesa Formation bonebed, northern Chile. Journal of Vertebrate Paleontology 22 (Supplement to No. 3), Abstracts: 117A.
• Walsh, S.A. 2003. Palaeoecology of the Neogene Bahía Inglesa Formation, Chile. In: P.M. Barrett (ed.), Abstracts of the 51st Symposium of Vertebrate Palaeontology and Comparative Anatomy 33. Oxford.
• Walsh, S.A. and Hume, J.P. 2001. A new Neogene marine avian assemblage from north−central Chile. Journal of Vertebrate Paleontology 21: 484–491.
• Walsh, S.A. and Naish, D. 2002. Fossil seals from late Neogene deposits in South America: a new pinniped (Carnivora, Mammalia) assemblage from Chile. Palaeontology 45: 821–842.