MEGATHERIUM CELENDINENSE SP. NOV. FROM THE PLEISTOCENE OF THE PERUVIAN ANDES and THE PHYLOGENETIC RELATIONSHIPS OF MEGATHERIINES

@article{Pujos2006MEGATHERIUMCS,
  title={MEGATHERIUM CELENDINENSE SP. NOV. FROM THE PLEISTOCENE OF THE PERUVIAN ANDES and THE PHYLOGENETIC RELATIONSHIPS OF MEGATHERIINES},
  author={François Pujos},
  journal={Palaeontology},
  year={2006},
  volume={49}
}
  • F. Pujos
  • Published 1 March 2006
  • Biology
  • Palaeontology
Abstract:  A new Pleistocene megatheriine, Megatherium celendinense sp. nov., is reported from a cave in the north of the Peruvian Andes. It is the largest Andean Megatheriinae and is characterized by a short, massive, Y‐shaped premaxilla unfused to the maxilla, a dorsoventrally compressed occiput perpendicular to the dorsal plane of the cranial roof, prominent and posteriorly extended occipital condyles, an extremely reduced deltopectoral crest and a poorly marked musculospiral groove on the… 

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References

SHOWING 1-10 OF 69 REFERENCES

The smallest and most ancient representativeof the genus Megatherium Cuvier, 1796 (Xenarthra, Tardigrada, Megatheriidae), from the Pliocene of the Bolivian Altiplano

The presence of the new species in the Montehermosan suggests that the genus Megatherium had emerged by the beginning of the Pliocene, and that the most recent common ancestor of the clade (including also M. americanum and M. tarijense), predates thepliocene.

Relationships of the Megatheriinae, Nothrotheriinae, and Planopsinae: some skeletal characteristics and their importance for phylogeny

The Y–shaped premaxillae of some Nothrotheriinae sensu lato may be a synapomorphy of the Plio-Pleistocene and some Santacrucian nothrotheres.

The cranial anatomy of Thalassocnus (Xenarthra, Mammalia), a derived nothrothere from the Neogene of the Pisco Formation (Peru)

Abstract The Pisco Formation (Miocene–Pliocene) of Peru contains a diverse marine vertebrate fauna. Among the more unusual members of the fauna is the semi-aquatic to aquatic nothrothere sloth,

CATALOGACION CRITICA DE ALGUNOS VERTEBRADOS FOSILES CHILENOS. IlI. LOS MEGATERIOIDEOS. SOBRE MEGATHERIUM MEDINAE PHILIPPI

"After reviewing the materials preserved in the National Museum of Natural History of Santiago, Chile, the authors make its comparative morphological analysis and conclude that all belong to a single species of Megatherium.

Eremotherium laurillardi: the panamerican late Pleistocene megatheriid sloth

Two large, recently recovered collections of Eremotherium remains from Jacobina, Bahia, Brazil, and Daytona Beach, Florida, USA, do not support the presence of these species and demonstrate the existence of a single Panamerican species.

Phylogenetic relationships among sloths (Mammalia, Xenarthra, Tardigrada): the craniodental evidence

The results imply that the split between the two extant sloth genera is ancient, dating back perhaps as much as 40 Myr, and that the similarities between these two taxa present one of the most dramatic examples of convergent evolution known among mammals.

A new giant megatheriine ground sloth (Mammalia: Xenarthra: Megatheriidae) from the late Blancan to early Irvingtonian of Florida

The giant megatheriine ground sloth Eremotherium eomigrans is described based on remains from the late Blancan to early Irvingtonian (late Pliocene to early Pleistocene) of Florida. It resembles the

The ear region of edentates and the phylogeny of the Tardigrada (Mammalia, Xenarthra)

A cladistic investigation of the phylogenetic relationships among 21 extinct and extant genera of sloths was performed on the basis of characteristics of the bony anatomy of the auditory region in order to evaluate specific hypotheses of relationship within the group.

The Fossil Mammal Fauna of South America

Of the three southern continents, South America was more isolated during the Tertiary than Africa, less isolated than Australia. Its record of Cenozoic mammalian life is better than that of either.
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