Results 51 to 60 of about 5,548 (220)
Revista Mexicana de Biodiversidad, 2011 We review historic occurrences in Mexico of one of the least known Xenarthra of Mesoamerica – the northern naked-tailed armadillo (Cabassous centralis Miller, 1899).
Arturo González Zamora
doaj +1 more source
Evolutionary Implications of Dental Eruption in Dasypus (Xenarthra)
Journal of Mammalian Evolution, 2011 Late eruption of the permanent dentition was recently proposed as a shared anatomical feature of endemic African mammals (Afrotheria), with anecdotal reports indicating that it is also present in dasypodids (armadillos). In order to clarify this question, and address the possiblity that late eruption is shared by afrotherians and dasypodids, we ...
Ciancio, Martín Ricardo +4 more
openaire +3 more sources
BMC Evolutionary Biology, 2012 Background Xenarthra (sloths, armadillos and anteaters) represent one of four currently recognized Eutherian mammal supraorders. Some phylogenomic studies point to the possibility of Xenarthra being at the base of the Eutherian tree, together or not with
Azevedo Nathália F +5 more
doaj +1 more source
Molecular decay of the tooth gene Enamelin (ENAM) mirrors the loss of enamel in the fossil record of placental mammals. [PDF]
PLoS Genetics, 2009 Vestigial structures occur at both the anatomical and molecular levels, but studies documenting the co-occurrence of morphological degeneration in the fossil record and molecular decay in the genome are rare.
Robert W Meredith +4 more
doaj +1 more source
Resolution among major placental mammal interordinal relationships with genome data imply that speciation influenced their earliest radiations [PDF]
, 2010 Background: A number of the deeper divergences in the placental mammal tree are still inconclusively resolved despite extensive phylogenomic analyses.
Hallström, Björn M., Janke, Axel
core
Journal of Anatomy, Volume 247, Issue 6, Page 1224-1240, December 2025.This study conducts the first comprehensive morphological investigation of the mandibular symphysis in whales. Using gross anatomical observation and CT cross‐sectional data, we describe diverse joint morphologies across 74 extant and fossil cetacean taxa. Toothed whales exhibit unfused, partially fused, or fully fused symphyses.
Rebecca J. Strauch +2 more
wiley +1 more source
XenarthraWe report on some novel natural history observations of southern three-banded armadillo Tolypeutes matacus and six-banded armadillo Euphractus sexcinctus from Paraguay. These are: 1) a new band anomaly for an adult of T.
Paul Smith +2 more
doaj +1 more source
Macrochorobates scalabrinii (Moreno & Mercerat) (Cingulata, dasypodidae) in the late miocene of the San Juan province (Argentina). Biochronostratigraphical and palaeobiogeographical implications [PDF]
, 2013 Macrochorobates scalabrinii is reported and described. The remains come from the upper deposits of the Las Flores Formation (Upper Miocene), outcropping at the Iglesia Valley (Iglesia Department, San Juan Province, Argentina). The detailed study of these
Contreras, Victor +3 more
core +2 more sources
Molecular Ecology, Volume 34, Issue 23, December 2025.ABSTRACT Environmental and climatic changes have shaped the evolutionary trajectories of natural populations, leaving genomic signatures that reflect how species respond to these shifts and their impacts on genetic health. While these insights are essential for unravelling evolutionary histories and informing conservation strategies, studies on ...
Larissa S. Arantes +5 more
wiley +1 more source
XenarthraTwo structural abnormalities are reported in southern three-banded armadillos Tolypeutes matacus (Chlamyphoridae) from Paraguay. Additional reports of individuals with amputated legs are noted, and a potential explanation for the frequency of such ...
Paul Smith
doaj +1 more source