The crocodylomorph fauna of the Cenozoic of South America and its evolutionary history: a review

@article{Cidade2019TheCF,
  title={The crocodylomorph fauna of the Cenozoic of South America and its evolutionary history: a review},
  author={Giovanne M. Cidade and Daniel C. Fortier and Annie Schmaltz Hsiou},
  journal={Journal of South American Earth Sciences},
  year={2019}
}
Taxonomic review of two fossil crocodylians from the Cenozoic of South America and its implications for the crocodylian fauna of the continent.
TLDR
A thorough review of the taxonomic status of two alligatoroid species from the Cenozoic of South America concludes that B. logimus is a nomen dubium and Caiman venezuelensis is a junior synonym of the extant species Ca.
Redescription and phylogenetic affinities of the caimanine Eocaiman cavernensis (Crocodylia, Alligatoroidea) from the Eocene of Argentina
TLDR
A reassessment of E. cavernensis is presented, based on first‐hand examination and micro‐computed tomography of the holotype, and some aspects of its morphology are reinterpreted, providing evidence for a monophyletic Eocaiman genus within Caimaninae, even though some highly incomplete taxa represent significant sources of phylogenetic instability.
A Pliocene–Pleistocene continental biota from Venezuela
TLDR
The hypothesis that range contraction of many taxa to their current distribution in northern South America occurred rapidly during at least the last 1.5 million years is supported.
First record of a tomistomine crocodylian from Australia
TLDR
Australia’s first tomistomine crocodylian is described, Gunggamarandu maunala gen. et sp.
Systematic revision of Sarcosuchus hartti (Crocodyliformes) from the Recôncavo Basin (Early Cretaceous) of Bahia, north-eastern Brazil
TLDR
The Brazilian taxon differs from the African Sarcosuchus imperator in the unique pattern of anastomosing ornamentation observed on the enamel surface and is likely related to a cladogenesis event that resulted from the break-up of Gondwana.
Taxonomic and phylogenetic review of Necrosuchus ionensis (Alligatoroidea: Caimaninae) and the early evolution and radiation of caimanines
TLDR
A taxonomic and phylogenetic review of Necrosuchus ionensis, a caimanine species from the Salamanca Formation of the Palaeocene of Argentina, and shows, for the first time, that N. ionensis belongs to the derived Caimaninae clade Jacarea.
Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem
TLDR
A new morphological dataset for Crocodylia is presented based on a critical reappraisal of published crocodylian character data matrices and extensive firsthand observations of a global sample of croc Codylians, which robustly recover Gavialis as more closely related to Tomistoma than to other extant cro codylians for the first time based on morphology alone.
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TLDR
A cladistic analysis of 32 alligatorid and three outgroup taxa resulted in 1210 equally most parsimonious cladograms, all of which suggest that Culebrasuchus mesoamericanus, gen. et sp.
A new Palaeocene crocodylian from southern Argentina sheds light on the early history of caimanines
TLDR
A new caimanine from this same unit represented by a skull roof and partial braincase is reported, showing that the Cretaceous and Palaeocene species of the group were more widespread than thought and became regionally extinct in North America around the CRETaceous–Palaeocene boundary.
Lower Miocene alligatoroids (Crocodylia) from the Castillo Formation, northwest of Venezuela
Crocodyliform diversity was particularly high during the middle and late Miocene of South America, with up to 12 species recovered from a single geological unit. Nonetheless, the early Miocene fossil
Late Miocene crocodylians from northeast Argentina: new approaches about the austral components of the Neogene South American crocodylian fauna
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ABSTRACT The richest and more explored regions concerning Miocene crocodylians in South America are the basins surrounding the areas of Urumaco (Venezuela), La Venta (Colombia), Acre (Northwest
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TLDR
A diversity peak in sympatric occurrence of at least seven species is shown, based on detailed stratigraphic sequence sampling and correlation, involving four geological formations from the middle Miocene to the Pliocene, and on the discovery of two new species and a new occurrence.
New tertiary sebecosuchians (Crocodylomorpha) from South America: Phylogenetic implications
A new family, genus and species of a sebecosuchian crocodile from the late Paleocene of northwestern Argentina is described. This new taxon shows several apomorphic conditions such as the bent
THE ALLIGATOROIDEA OF ARGENTINA: AN UPDATE OF ITS FOSSIL RECORD
The fossil record of Alligatoroidea in Argentina is mainly represented by Caimaninae alligatorids. This lineage recorded two impor- tant moments in its natural history, one at the beginning of the
New dyrosaurid crocodylomorph and evidences for faunal turnover at the K–P transition in Brazil
TLDR
This discovery suggests that on the coast of northeastern Brazil, dyrosaurids replaced the pre-existing Late Cretaceous fauna of diversified mosasaurs, a group of marine lizards, after the K–P extinction event, becoming the main predators, together with sharks, in shallow marine Palaeocene environments.
Neogene vertebrates from Urumaco, Falcón State, Venezuela: Diversity and significance
TLDR
Several freshwater species, including Serrasalminae fish, thorny catfishes, silver croaker, redtail catfishing, matamata turtle, river dolphin and probable sirenians, are consistent with the hypothesis that a tributary and/or delta of the Orinoco existed in this area of north‐western Venezuela during late Miocene times.
A New Sebecid from the Paleogene of Brazil and the Crocodyliform Radiation after the K–Pg Boundary
TLDR
The basal position of Barinasuchus arveloi, a high-snouted Miocene sebecid, indicates the occurrence of an independent lineage sometime after the K-Pg biotic crisis that developed accentuated oreinirostry, suggesting a more complex history of the post-K-Pg crocodyliform radiation.
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