Predatory Dinosaurs from the Sahara and Late Cretaceous Faunal Differentiation

Sereno, Paul C.; Dutheil, Didier B.; Iarochène, Mohamed; Larsson, Hans C. E.; Lyon, Gabrielle H.; Magwene, Paul M.; Sidor, Christian A.; Varricchio, David J.; Wilson, Jeffrey A.

doi:10.1126/science.272.5264.986

Cited by 352 publications

(458 citation statements)

References 17 publications

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“…The fossil preservation is, however, not exceptional, hampering their identification. Among theropods, several genera from North Africa as Carcharodontosaurus, Sigilmassasaurus (Sereno et al 1996, Novas et al 2005a, Brusatte and Sereno 2007, and Spinosaurus have been reported based on isolated vertebrae and teeth (Vilas Bôas et al 1999, Medeiros 2006, Medeiros and Schultz 2001, Medeiros et al 2007, Ribeiro et al 2003). Yet, the diagnoses of these taxa include anatomical details not available in the Itapecuru Group material, and they are here treated only as indeterminate Carcharodontosauridae and Spinosauridae (Table I, II).…”

Section: São Luís-grajaú Basinmentioning

confidence: 99%

Mesozoic dinosaurs from Brazil and their biogeographic implications

Bittencourt

Langer

2011

An. Acad. Bras. Ciênc.

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The record of dinosaur body-fossils in the Brazilian Mesozoic is restricted to the Triassic of Rio Grande do Sul and Cretaceous of various parts of the country. This includes 21 named species, two of which were regarded as nomina dubia, and 19 consensually assigned to Dinosauria. Additional eight supraspecific taxa have been identified based on fragmentary specimens and numerous dinosaur footprints known in Brazil. In fact, most Brazilian specimens related to dinosaurs are composed of isolated teeth and vertebrae. Despite the increase of fieldwork during the last decade, there are still no dinosaur body-fossils of Jurassic age and the evidence of ornithischians in Brazil is very limited. Dinosaur faunas from this country are generally correlated with those from other parts of Gondwana throughout the Mesozoic. During the Late Triassic, there is a close correspondence to Argentina and other south-Pangaea areas. Mid-Cretaceous faunas of northeastern Brazil resemble those of coeval deposits of North Africa and Argentina. Southern hemisphere spinosaurids are restricted to Africa and Brazil, whereas abelisaurids are still unknown in the Early Cretaceous of the latter. Late Cretaceous dinosaur assemblages of south-central Brazil are endemic only to genus or, more conspicuously, to species level, sharing closely related taxa with Argentina, Madagascar, Indo-Pakistan and, to a lesser degree, continental Africa.

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Section: São Luís-grajaú Basinmentioning

confidence: 99%

Mesozoic dinosaurs from Brazil and their biogeographic implications

Bittencourt

Langer

2011

An. Acad. Bras. Ciênc.

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“…Some characteristics of Limusaurus, such as the hypertrophied scapulocoracoid and highly abbreviated forelimbs with very short hands, were previously considered to diagnose lower-level or even species-level ceratosaurian taxa 3,11,12 . In our analysis, they are optimized as synapomorphies of much more inclusive ceratosaurian groups.…”

Section: Implications For Neotheropod Evolutionmentioning

confidence: 99%

A Jurassic ceratosaur from China helps clarify avian digital homologies

Clark

et al. 2009

Nature

194

296

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“…Many of the identified taxa from the Alcântara Formation are also recorded in that region of the African continent (e.g. Stromer 1915, 1931, 1934, Lapparent 1960, Tabaste 1963, Sereno et al 1996, Russell 1996, Benton et al 2000. The fish record is outstanding.…”

Section: Associated Paleofaunamentioning

confidence: 85%

A new genus of dipnoiformes from the Cretaceous of Brazil

Toledo¹,

Sousa²,

Medeiros

et al. 2011

An. Acad. Bras. Ciênc.

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The Alcântara Formation, an important stratigraphic unit from the early Cenomanian of Brazil, was deposited under transitional (estuarine) conditions, and its fossil record includes fragmentary remains of plants, fishes, crocodylomorphs, pterosaurs and dinosaurs, with a noteworthy diversity of dipnoiformes tooth plates. The dipnoiformes material reported here comprises a new taxon, Equinoxiodus alcantarensis, gen. et sp. nov. Most of the identified morphotypes of continental vertebrates collected in the Alcântara Formation are similar to chronocorrelative faunas from Northern Africa, but this new genus of Dipnoiformes indicates some degree of paleogeographic isolation and endemism. This was probably caused by the widening of the equatorial Atlantic Ocean during the early Cenomanian, which may have selectively affected some species.

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Predatory Dinosaurs from the Sahara and Late Cretaceous Faunal Differentiation

Cited by 352 publications

References 17 publications

Mesozoic dinosaurs from Brazil and their biogeographic implications

Mesozoic dinosaurs from Brazil and their biogeographic implications

A Jurassic ceratosaur from China helps clarify avian digital homologies

A new genus of dipnoiformes from the Cretaceous of Brazil

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