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The latest freshwater giants: a new Peltocephalus (Pleurodira: Podocnemididae) turtle from the Late Pleistocene of the Brazilian Amazon.
Ferreira, G S; Nascimento, E R; Cadena, E A; Cozzuol, M A; Farina, B M; Pacheco, M L A F; Rizzutto, M A; Langer, M C.
Afiliación
  • Ferreira GS; Senckenberg Centre for Human Evolution and Palaeoenvironment at the Eberhard Karls Universität Tübingen, Tübingen, Germany.
  • Nascimento ER; Geowissenschaften Fachbereich, Eberhard Karls Universität Tübingen, Tübingen, Germany.
  • Cadena EA; Centro de Biologia Experimental (CIBEBI), Programa de Mestrado e Doutorado em Geografia, Universidade Federal de Rondônia (UNIR), Porto Velho, Brazil.
  • Cozzuol MA; Facultad de Ciencias Naturales, Grupo de Investigación Paleontología Neotropical Tradicional y Molecular (PaleoNeo), Universidad del Rosario, Bogotá, Colombia.
  • Farina BM; Smithsonian Tropical Research Institute, Panamá, Panama.
  • Pacheco MLAF; Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
  • Rizzutto MA; Department of Biology, University of Fribourg, Fribourg, Switzerland.
  • Langer MC; Swiss Institute of Bioinformatics, Fribourg, Switzerland.
Biol Lett ; 20(3): 20240010, 2024 03.
Article en En | MEDLINE | ID: mdl-38471564
ABSTRACT
Overkill of large mammals is recognized as a key driver of Pleistocene megafaunal extinctions in the Americas and Australia. While this phenomenon primarily affected mega-mammals, its impact on large Quaternary reptiles has been debated. Freshwater turtles, due to the scarcity of giant forms in the Quaternary record, have been largely neglected in such discussions. Here we present a new giant podocnemidid turtle, Peltocephalus maturin sp. nov., from the Late Pleistocene Rio Madeira Formation in the Brazilian Amazon, that challenges this assumption. Morphological and phylogenetic analyses of the holotype, a massive partial lower jaw, reveal close affinities to extant Amazonian species and suggest an omnivorous diet. Body size regressions indicate Pe. maturin possibly reached about 180 cm in carapace length and is among the largest freshwater turtles ever found. This finding presents the latest known occurrence of giant freshwater turtles, hinting at coexistence with early human inhabitants in the Amazon.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tortugas Límite: Animals / Humans País/Región como asunto: America do sul / Brasil Idioma: En Revista: Biol Lett Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tortugas Límite: Animals / Humans País/Región como asunto: America do sul / Brasil Idioma: En Revista: Biol Lett Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido