Results 1 to 10 of about 1,099 (153)

Isotope data from amino acids indicate Darwin’s ground sloth was not an herbivore [PDF]

open access: yesScientific Reports, 2021
Fossil sloths are regarded as obligate herbivores for reasons including peculiarities of their craniodental morphology and that all living sloths feed exclusively on plants.
Julia V. Tejada   +8 more
doaj   +2 more sources

A new species of deep-water Lethrinops (Cichlidae) from Lake Malawi. [PDF]

open access: yesJ Fish Biol, 2022
Abstract A new species of cichlid fish, Lethrinops atrilabris is described from specimens collected by trawling at a depth of around 90 m off Monkey Bay, southern Lake Malawi. It is assigned to the genus Lethrinops on the basis of its vertical flank barring, lack of enlarged cephalic lateral line canal pores and the form of the lower jaw dental arcade.
Turner GF.
europepmc   +2 more sources

Survey of the state of conservation of the Mylodon listai (Xenarthra-Mylodontidae) skin fragment from the Pleistocene of Argentina kept at the Museum of La Plata (Argentina) [PDF]

open access: diamondGe-conservación, 2016
The aim of the present study was to assess the state of conservation of the fossilized skin fragment assigned to Mylodon listai preserved in a showcase of the Paleontology Hall of the Museum of La Plata.
Daniela Silvana Nitiu   +3 more
doaj   +3 more sources

Novel 12S mtDNA findings in sloths (Pilosa, Folivora) and anteaters (Pilosa, Vermilingua) suggest a true case of long branch attraction [PDF]

open access: yesGenetics and Molecular Biology, 2008
We sequenced 12S RNA mtDNA for the majority of the extant species of sloths and anteaters and compared our results with previous data obtained by our group using 16S RNA mtDNA in the same specimens and to GenBank sequences of the extinct giant sloth ...
Maria Claudene Barros   +2 more
doaj   +3 more sources

Phylogenetic analysis of 16S mitochondrial DNA data in sloths and anteaters [PDF]

open access: yesGenetics and Molecular Biology, 2003
We sequenced part of the 16S rRNA mitochondrial gene in 17 extant taxa of Pilosa (sloths and anteaters) and used these sequences along with GenBank sequences of both extant and extinct sloths to perform phylogenetic analysis based on parsimony, maximum ...
Maria Claudene Barros   +2 more
doaj   +3 more sources

First record of Mylodon Darwini Owen (xenarthra, tardigrada, mylodontidae) from Arroyo Feliciano formation (late pleistocene), Entre Rios, Argentina [PDF]

open access: diamond, 2015
In this contribution a new record of M. darwini Owen, based on an incomplete skull (MRHU-1) recovered from the Arroyo Feliciano Formation (late Pleistocene) on the Gualeguay River cliffs, nearly the city of Urdinarrain, is presented.
Brandoni, Diego   +2 more
core   +3 more sources

NUEVOS REGISTROS DE MAMÍFEROS DEL PLEISTOCENO TARDÍO (MIS 5) EN EL SUR DE LA MESOPOTAMIA ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2023
En esta contribución se dan a conocer nuevos registros de mamíferos del Pleistoceno Tardío de la Provincia de Entre Ríos. Los fósiles provienen de la Formación Salto Ander Egg, una unidad depositada en los valles fluviales del sudoeste entrerriano con ...
Brenda S. Ferrero, Jorge I. Noriega
doaj   +1 more source

Iteratively mapping ancient DNA to reconstruct highly divergent mitochondrial genomes: An evaluation of software, parameters and bait reference

open access: yesMethods in Ecology and Evolution, Volume 13, Issue 11, Page 2419-2428, November 2022., 2022
Abstract The ability to obtain ancient DNA (aDNA) from extinct species has greatly improved our ability to study their evolutionary histories. Most aDNA studies focus on mitochondrial DNA for both population‐level and species‐level insights, due to its relatively high abundance and increased obtainability.
Michael V. Westbury, Eline D. Lorenzen
wiley   +1 more source

Guanaco colonisation of Tierra del Fuego Island from mainland Patagonia: Walked, swam, or by canoe?

open access: yesGeo: Geography and Environment, Volume 9, Issue 2, July‐December 2022., 2022
A geographical and biological puzzle that has perplexed scientists since the late 1800s working in southern South America: why are there so few vertebrates on the island of Tierra del Fuego compared to the adjacent Patagonia mainland, including the absence of the ubiquitous Guanaco (Lama guanicoe), wild camelid of the south? An interdisciplinary search
William L. Franklin
wiley   +1 more source

Home - About - Disclaimer - Privacy