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Botucatu Formation
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The Botucatu Formation is an Aptian geologic formation of the Paraná and Pelotas Basins in southern Brazil and northern Uruguay. The formation is composed of quartzitic sandstones, deposited in an eolian environment.[1] Fossil theropod tracks have been reported from the formation.[2]
Key Information
Description
[edit]The sandstone is fine-textured and well sorted, containing no pebbles; its colour is occasionally white, yellowish, and reddish, but more commonly it is pinkish. Nearly always it is silicified and therefore compact and hard.[3] The formation was deposited in an arid desert environment, characterized by sabkhas and wadis.[4]
Fossil content
[edit]Among the following fossils were reported from the Botucatu Formation:[3]
- Coelurosauria indet.
- Lacertilia indet.
- Mammalia indet.
- Ornithopoda indet.
- Theropoda indet.
- ?Tritylodontoidea indet.
- Vespersaurus paranensis[5]
- Brasilichnium elusivum[4]
- Farlowichnus rapidus[6]
- Lacertoidea indet.[7]
- Pteraichnus isp.[8]
See also
[edit]- List of dinosaur-bearing rock formations
- List of fossiliferous stratigraphic units in Uruguay
- Itapecuru Formation, contemporaneous fossiliferous formation of the São Luis and Parnaíba Basins
- Bahia Group, contemporaneous fossiliferous formation of the Recôncavo Basin
- Quiricó Formation, contemporaneous fossiliferous formation of the São Francisco Basin
- La Cruz Formation, contemporaneous fossiliferous formation of the Marayes-El Carrizal Basin, Argentina
- Rayoso Formation, contemporaneous fossiliferous formation of the Neuquén Basin, Argentina
- Cerro Barcino Formation, contemporaneous fossiliferous formation of the Cañadón Asfalto Basin, Argentina
- Río Belgrano Formation, contemporaneous fossiliferous formation of the Austral Basin, Argentina
References
[edit]- ^ Petrolli & Pimentel, 2014, p.1
- ^ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ^ a b São Bento quarry, Araraquara at Fossilworks.org
- ^ a b Leonardi, 1994, p.50
- ^ Langer, Max Cardoso; de Oliveira Martins, Neurides; Manzig, Paulo César; de Souza Ferreira, Gabriel; de Almeida Marsola, Júlio César; Fortes, Edison; Lima, Rosana; Sant'ana, Lucas Cesar Frediani; da Silva Vidal, Luciano; da Silva Lorençato, Rosangela Honório; Ezcurra, Martín Daniel Ezcurra (2019). "A new desert-dwelling dinosaur (Theropoda, Noasaurinae) from the Cretaceous of south Brazil". Scientific Reports. 9 (1): 9379. Bibcode:2019NatSR...9.9379L. doi:10.1038/s41598-019-45306-9. PMC 6594977. PMID 31243312.
- ^ Leonardi, Giuseppe; Fernandes, Marcelo Adorna; Carvalho, Ismar de Souza; Schutzer, Julia Beatrice; Silva, Rafael Costa da (2023-09-30). "Farlowichnus rapidus new ichnogen., new ichnosp.: A speedy and small theropod in the Early Cretaceous Botucatu paleodesert (Paraná Basin), Brazil". Cretaceous Research. 153 105720. doi:10.1016/j.cretres.2023.105720. ISSN 0195-6671.
- ^ Buck, Pedro Victor; Ghilardi, Aline Marcele; de C.P. e M. Peixoto, Bernardo; Aureliano, Tito; Fernandes, Marcelo Adorna (1 June 2022). "Lacertoid tracks from the Botucatu Formation (Lower Cretaceous) with different locomotor behaviors: A new trackmaker with novel paleoecological implications". Journal of South American Earth Sciences. 116 103825. doi:10.1016/j.jsames.2022.103825. ISSN 0895-9811. Retrieved 9 December 2024 – via Elsevier Science Direct.
- ^ Lacerda, M. B. S.; Fernandes, M. A.; Leonardi, G. (2025). "First pterosaur tracks from Brazil". Anais da Academia Brasileira de Ciências. 97 (Suppl. 1) e20241490. doi:10.1590/0001-3765202520241490. PMID 40960737.
Bibliography
[edit]- Leonardi, Giuseppe (1994), Annotated Atlas of South America Tetrapod Footprints (Devonian to Holocene) with an appendix on Mexico and Central America, Ministerio de Minas e Energia - Companhia de Pesquisa de Recursos Minerais, Geological Service of Brazil, pp. 1–248, retrieved 2019-03-25
- Petrolli, Larissa; Pimentel Mizusaki, Ana Maria (2014), Formação Botucatu (Jurássico, Bacia do Paraná) – análogo como reservatório de hidrocarbonetos para as bacias da margem continental brasileira (PDF), Universidade Federal do Rio Grande do Sul, p. 1, retrieved 2017-09-09
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21
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Further reading
[edit]- Leonardi, G. 1989. Inventory and statistics of the South American dinosaurian ichnofauna and its paleobiological interpretation. In D. D. Gillette & M. G. Lockley (ed.), Dinosaur Tracks and Traces 165–178.
- Leonardi, G. 1980. On the discovery of an abundant ichno-fauna (vertebrates and invertebrates) in the Botucatu Formation s.s. in Araraquara, São Paulo, Brazil. Anais da Academia Brasileira de Ciências 52(3):559-567 link.
- Leonardi, G., Carvalho, I.S., and Fernandes, M.A. 2007. The desert ichnofauna from Botucatu Formation (Upper Jurassic–Lower Cretaceous), Brazil. In: Carvalho, I.S., Cassab, R.C.T., Schwanke, C., Carvalho, M.A., Fernandes, A.C.S., Rodrigues, M.A.C., Carvalho, M.S.S., Arai, M., and Oliveira, M.E.Q. (eds.). Paleontologia: Cenários da Vida, I. Interciência, Rio de Janeiro, Brazil. p, 372–383. link.