Two new megalonychid sloths (Mammalia: Xenarthra) from the Urumaco Formation (late Miocene), and their phylogenetic affinities (project)

10.7934/p3485 ◽  
2021 ◽  
Author(s):  
A Rincón ◽  
A Solórzano ◽  
H McDonald ◽  
M Montellano-Ballesteros
Keyword(s):  
Late Miocene ◽  
Phylogenetic Affinities ◽  
Urumaco Formation

Two new megalonychid sloths (Mammalia: Xenarthra) from the Urumaco Formation (late Miocene), and their phylogenetic affinities

2018 ◽  
Vol 17 (5) ◽  
pp. 409-421 ◽  
Author(s):  
Ascanio D. Rincón ◽  
Andrés Solórzano ◽  
H. Gregory McDonald ◽  
Marisol Montellano-Ballesteros
Keyword(s):  
Late Miocene ◽  
Phylogenetic Affinities ◽  
Urumaco Formation

scholarly journals Paleoecological and taphonomical aspects of the Late Miocene vertebrate coprolites (Urumaco Formation) of Venezuela

2018 ◽  
Vol 490 ◽  
pp. 590-603 ◽  
Author(s):  
Paula Dentzien-Dias ◽  
Jorge Domingo Carrillo-Briceño ◽  
Heitor Francischini ◽  
Rodolfo Sánchez
Keyword(s):  
Late Miocene ◽  
Urumaco Formation

scholarly journals A new enigmatic Late Miocene mylodontoid sloth from northern South America

2015 ◽  
Vol 2 (2) ◽  
pp. 140256 ◽  
Author(s):  
Ascanio D. Rincón ◽  
H. Gregory McDonald ◽  
Andrés Solórzano ◽  
Mónica Núñez Flores ◽  
Damián Ruiz-Ramoni
Keyword(s):  
South America ◽  
Late Miocene ◽  
Preliminary Analysis ◽  
New Genus ◽  
New Taxon ◽  
New Genus And Species ◽  
Consensus Tree ◽  
Discriminate Analysis ◽  
Northern South America ◽  
Phylogenetic Affinities

A new genus and species of sloth ( Eionaletherium tanycnemius gen. et sp. nov.) recently collected from the Late Miocene Urumaco Formation, Venezuela (northern South America) is herein described based on a partial skeleton including associated femora and tibiae. In order to make a preliminary analysis of the phylogenetic affinities of this new sloth we performed a discriminate analysis based on several characters of the femur and tibia of selected Mylodontoidea and Megatherioidea sloths. The consensus tree produced indicates that the new sloth, E. tanycnemius , is a member of the Mylodontoidea. Surprisingly, the new taxon shows some enigmatic features among Neogene mylodontoid sloths, e.g. femur with a robust lesser trochanter that projects medially and the straight distinctly elongated tibia. The discovery of E. tanycnemius increases the diversity of sloths present in the Urumaco sequence to ten taxa. This taxon supports previous studies of the sloth assemblage from the Urumaco sequence as it further indicates that there are several sloth lineages present that are unknown from the better sampled areas of southern South America.

scholarly journals A Late Miocene Pipine Frog from the Urumaco Formation, Venezuela

Ameghiniana ◽  
2018 ◽  
Vol 55 (2) ◽  
pp. 210-214 ◽  
Author(s):  
Massimo Delfino ◽  
Marcelo R. Sánchez-Villagra
Keyword(s):  
Late Miocene ◽  
Urumaco Formation

A new cajaro catfish (Siluriformes: Pimelodidae:Phractocephalus) from the Late Miocene of southwestern Amazonia and its relationship to °Phractocephalus nassi of the Urumaco Formation

PalZ ◽  
2008 ◽  
Vol 82 (2) ◽  
pp. 231-245 ◽  
Author(s):  
Orangel A. Aguilera ◽  
Jean Bocquentin ◽  
Rio Branco ◽  
John G. Lundberg ◽  
Andrea Maciente
Keyword(s):  
Late Miocene ◽  
Southwestern Amazonia ◽  
Urumaco Formation

scholarly journals Phylogenetic affinities of the late Miocene echimyid †Pampamysand the age ofThrichomys(Rodentia, Hystricognathi)

2012 ◽  
Vol 93 (1) ◽  
pp. 76-86 ◽  
Author(s):  
A. Itatí Olivares ◽  
Diego H. Verzi ◽  
M. Guiomar Vucetich ◽  
Claudia I. Montalvo
Keyword(s):  
Late Miocene ◽  
Phylogenetic Affinities
Sign in / Sign up

Export Citation Format

Share Document