Pleistocene cetacean fossils from the coastal plain of Rio Grande do Sul in southern Brazil

Carrasco, Thayara S.; Buchmann, Francisco Sekiguchi

doi:10.1080/03115518.2021.1966647

Cited by 3 publications

(2 citation statements)

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“…in Jamaica (Domning, 2005), cetaceans and pinnipeds from the Coastal Plains of Rio Grande do Sul and sirenians and inioids from Rio Madeira Fm. in Brazil (Oliveira & Drehmer, 1997;Drehmer & Ribeiro, 1998;Rodrigues et al, 2004;Cozzuol, 2010;Perini et al, 2019;Carrasco & Buchmann, 2021), pinnipeds from the Sucesion Litoral de Mejillones and Estratos de Caldera in Chile (Valenzuela-Toro et al, 2013, and cetaceans and pinnipeds from the Caracoles and Pongo Fms in Peru (Ochoa et al, 2021). Pleistocene records of extant species suggest that many marine mammal taxa already displayed a contemporary geographical distribution.…”

Section: Pleistocenementioning

confidence: 99%

Aquatic mammal fossils in Latin America – a review of records, advances and challenges in research in the last 30 years

Viglino

Valenzuela‐Toro

Benites‐Palomino

et al. 2023

Lat. Am. J. Aquat. Mamm.

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Records of aquatic mammal fossils (e.g. cetaceans, pinnipeds, sirenians, mustelids, and desmostylians) from Latin America (Mexico to Tierra del Fuego, including Antartica) span since the mid-1800s. Aquatic mammal fossils received little attention from the scientific community, with most of the first studies conducted by Northern Hemisphere researchers. Over the last 30 years, paleontological research in Latin America has increased considerably, with descriptions of several new species and revisions of published original records. The Latin American fossil record of marine mammals spans from the Eocene to the Pleistocene, with formations and specimens of global significance. All three main groups of cetaceans are represented in the continent (Archaeoceti, Mysticeti, and Odontoceti). Pinnipedia are represented by the families Otariidae and Phocidae, with records starting in the Middle Miocene. Both living families of Sirenia (Trichechidae and Dugongidae) are recorded. While less common, but still relevant, records of desmostylians and mustelids are known from Oligocene and Miocene deposits. This review provides a summary of the aquatic mammals known to date, with a special focus on the advances and developments of the last 30 years, since Cozzuol’s (1996) review of the South American fossil record. An up-to-date complete list of species based on the literature and unpublished data is also provided. The study also provides future directions for paleontological research in Latin America, and discusses the challenges and opportunities in the field, including the emergence of a strong new generation of Latin American researchers, many of whom are women.

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Section: Pleistocenementioning

confidence: 99%

Aquatic mammal fossils in Latin America – a review of records, advances and challenges in research in the last 30 years

Viglino

Valenzuela‐Toro

Benites‐Palomino

et al. 2023

Lat. Am. J. Aquat. Mamm.

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“…In southern Brazil, several skull fragments (Ribeiro et al, 1998) and an isolated tympanic bulla (Carrasco & Buchmann, 2021) associated with Late Pleistocene deposits were described. Fossil skull fragments are typically composed of the roof of the skull and part of the rostrum, with bone nares, ethmoids, nasals, frontals, maxillae, and premaxillae partially preserved (for more details see Ribeiro et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Ecological traits of the franciscana dolphin (Pontoporia blainvillei) from the Late Pleistocene to the present days based on stable isotope analysis

Carrasco,

de Lima,

da Mota

et al. 2023

Marine Mammal Science

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Late Pleistocene fossils from southern Brazil provide a unique opportunity to study the diet and habitat use of the extant franciscana dolphin (Pontoporia blainvillei) prior to human influence. Here, we subject 19 fossil and 21 contemporary specimens to stable carbon and oxygen isotope analysis (after first ruling out diagenesis via Fourier transform infrared spectroscopy). The two groups differ in their isotopic composition (PERMANOVA, p < .01), with fossils yielding more disparate δ13C values and recent samples more disparate δ18O values. Their isotopic niches show an overlap of ~20%, with that of the fossils being slightly wider (SEAc = 2.25‰2 versus 1.84‰2). We attribute these differences to impoverished modern fish communities and temporal changes in freshwater influx.

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Vertebrados e invertebrados fósiles en la Costa Atlántica de la Provincia de Buenos Aires, Argentina. Edad y paleoambientes

Agnolín,

Bogan,

Lucero

et al. 2024

AGL

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Los vertebrados fósiles de las líneas costeras marinas a lo largo de la costa atlántica de la provincia de Buenos Aires, en el este de Argentina, son bien conocidos desde el siglo XIX. A pesar de ser frecuentes a lo largo de la costa del área de Cabo San Antonio, la descripción de los vertebrados e invertebrados fósiles encontrados a lo largo de la costa permanece casi sin documentar y su descripción ha sido mayormente anecdótica. El objetivo de la presente contribución es el de describir una gran colección de fósiles encontrados a lo largo de la playa de varias localidades en el área del cabo de San Antonio. Los fósiles incluyen una mezcla de animales terrestres y marinos que probablemente pertenecen a la Formación Pozo 10 (aproximadamente 120.000 años antes del presente), correlacionable con el evento transgresivo marino conocido como "Belgranense". Varios fósiles sugieren aguas cálidas, reminiscentes de las que ocurren hoy en día en el norte de Brasil. Los fósiles aquí reportados son muy similares a los de los conjuntos de fósiles costeros encontrados en el sur de Brasil, Uruguay y el sur de la provincia de Buenos Aires, lo que sugiere algún tipo de continuidad faunística y ambiental a lo largo de las costas del sur durante el Pleistoceno medio.

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Pleistocene cetacean fossils from the coastal plain of Rio Grande do Sul in southern Brazil

Cited by 3 publications

References 64 publications

Aquatic mammal fossils in Latin America – a review of records, advances and challenges in research in the last 30 years

Aquatic mammal fossils in Latin America – a review of records, advances and challenges in research in the last 30 years

Ecological traits of the franciscana dolphin (Pontoporia blainvillei) from the Late Pleistocene to the present days based on stable isotope analysis

Vertebrados e invertebrados fósiles en la Costa Atlántica de la Provincia de Buenos Aires, Argentina. Edad y paleoambientes

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