New Saber-Toothed Cat Records (Felidae: Machairodontinae) for the Pleistocene of Venezuela, and the Great American Biotic Interchange

  title={New Saber-Toothed Cat Records (Felidae: Machairodontinae) for the Pleistocene of Venezuela, and the Great American Biotic Interchange},
  author={Asc{\'a}nio Daniel Rinc{\'o}n and Francisco Juan Prevosti and G. Parra},
ABSTRACT The Machairodontinae fossil record in South America is not very diverse. Until now, only the genus Smilodon (Smilodontini) has been reported, with likely a single species, S. populator. A second taxon of Machairodontinae was referred to Homotheriini and to the genus Xenosmilus, but the age to which it was assigned, early to middle Pleistocene, is uncertain, because it was recovered out of stratigraphic context. At present, the Venezuelan saber-toothed cat record is limited to the… 

Taxonomic revision of a Machairodontinae (Felidae) from the Late Hemphillian of México

ABSTRACT In the Late Hemphillian of Guanajuato, México, fossil material assigned to Machairodus sp. cf. M. coloradensis (= Amphimachairodus coloradensis) was described in the 90´s. A detailed

A New Machairodont from the Palmetto Fauna (Early Pliocene) of Florida, with Comments on the Origin of the Smilodontini (Mammalia, Carnivora, Felidae)

Rhizosmilodon is the oldest known member of the Smilodontini, suggesting that the tribe originated in North America.

The state of knowledge of the jaguar Panthera onca (Linnaeus, 1758) (Carnivora, Felidae) during the Quaternary in Uruguay

Felids are the top predators in the environments they inhabit. They entered South America at the Pliocene-Pleistocene boundary, but their fossil record in Uruguay, although informative, is scarce. In

First Record of Carnivora (Puma Lineage, Felidae) in the Uquía Formation (Late Pliocene–Early Pleistocene, NW Argentina) and Its Significance in the Great American Biotic Interchange

Abstract. The fossil record of the puma lineage in America is sparse, and doubts have been raised about the origin, radiation, and migration events of this lineage. In this study, we present results

Phylogeny of the sabertoothed felids (Carnivora: Felidae: Machairodontinae)

  • P. Christiansen
  • Biology
    Cladistics : the international journal of the Willi Hennig Society
  • 2013
This paper provides the first phylogenetic hypothesis of machairodont relationships based on 50 craniomandibular and dental characters from a wide range of sabercats spanning more 11 Myr, and proposes a name for a well‐supported clade of primarily Plio‐Pleistocene taxa for which the name Eumachairodentia taxon novum is proposed.

The saber-toothed cat Homotherium latidens (Owen, 1846) from the lower Pleistocene locality Dafnero, Western Macedonia, Greece

ABSTRACT The homotheres, although known from the Greek fossil record since the beginning of the 1930's, have only been recorded from fragmentary material, sometimes undescribed and with questionable

Fossil snakes (Squamata, Serpentes) from the tar pits of Venezuela: taxonomic, palaeoenvironmental, and palaeobiogeographical implications for the North of South America during the Cenozoic/Quaternary boundary

The snake fauna of El Breal de Orocual and Mene de Inciarte demonstrates the presence of Boidae, Viperidae, “colubrids”, and the oldest South American record of Elapidae.

The presence of Panthera onca Linnaeus 1758 (Felidae) in the Pleistocene of the region of Lagoa Santa, State of Minas Gerais, Brazil

An adult specimen, represented by teeth, small appendicular bones and fragmented larger bones, of Pleistocene age found in the Cuvieri Cave is presented here, providing anatomical and preservation data, adding information about this species in the Brazilian Quaternary.



A first record of the Pleistocene saber-toothed cat Smilodon populator Lund, 1842 (Carnivora: Felidae: Machairodontinae) from Venezuela

The first record of saber-toothed cat S. populator Lund, 1842 from Venezuela is reported, found in two localities, Inciarte Tar Pits in Zulia State, and Zumbador Cave in Falcon State.


Differences in cranial morphology suggest separation at the generic level between M. aphanistus and M. giganteus, suggesting that the specialized canines of M. ansonistus were used within the context of a biting mechanism more similar to the canine bite of modern felids.

Machairodonts from The Late Cenozoic of The Panhandle of Texas

Abstract: Machairodonts represented by specimens from the Late Cenozoic of the Texas Panhandle include a small form of Machairodus ( Heterofelis ) from the Axtel locality (Hemphillian), and a new

Carnivores of the Khapry Faunal Assemblage and Their Stratigraphic Implications

Carnivores of the Khapry faunal assemblage that is commonly considered as an analogue of the middle Villafranchian West European fauna (Late Pliocene, Zone MN17) were revised. Members of nine Car-

Revisión sistemática y antigüedad de Smilodontidion riggii (Carnivora, Felidae, Machairodontinae)

It is suggested that Smilodontidion is a synonym of Smilodon, although it could not be assigned to any species of the genus, and the validity of the species is not justified by the morphology of Smilies riggii.

Relationships between North and South American Smilodon

ABSTRACT Middle and Late Pleistocene representatives of the genus Smilodon in South and North America are here assigned to different species. The South American S. populator, which existed east of

Megantereon hesperus from the late Hemphillian of Florida with remarks on the phylogenetic relationships of machairodonts (Mammalia, Felidae, Machairodontinae)

The Florida record marks the earliest known occurrence of Megantereon and adds to the poorly known record of this genus in North America.

Evolution of the extinct Sabretooths and the American cheetah-like cat