Results 41 to 50 of about 5,474 (205)

Arthritis in a Glyptodont (Mammalia, Xenarthra, Cingulata)

open access: yesPLoS ONE, 2014
Arthritic lesions have been frequently diagnosed in the fossil record, with spondyloarthropathy (a type of erosive and pan-mammalian arthritis) being one of the most common types described to date for mammals, though not restricted to this group. Here, we identify spondyloarthropathy in fossil bones from the late Pleistocene in Brazil assignable to a ...
Fernando Henrique de Souza Barbosa   +3 more
openaire   +4 more sources

The Megafauna3D Educational Environment: Harnessing the Combination of New and Traditional Technologies to Improve Geoscience Education and Outreach

open access: yesGeosciences
The Megafauna3D project integrates advanced 3D scanning technologies and paleontological research to bring the extinct megafauna of Uruguay to formal and informal educational settings.
Luciano Varela   +4 more
doaj   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

Hoffmann's two‐toed sloth II: Muscle architectural properties in the thoracic limb of Choloepus (Pilosa: Xenarthra)

open access: yesJournal of Anatomy, EarlyView.
Two‐toed sloths use their thoracic limbs for more frequent and greater suspensory support than three‐toed sloths and have muscle architectural properties consistent with stability of the pectoral girdle, enhanced flexor force/torque applied at the shoulder and elbow joints, and grip on the support as indicated by their myology. Abstract Two‐toed sloths
C. S. Tucker   +4 more
wiley   +1 more source

Early history of mammals is elucidated with the ENCODE multiple species sequencing data. [PDF]

open access: yesPLoS Genetics, 2007
Understanding the early evolution of placental mammals is one of the most challenging issues in mammalian phylogeny. Here, we addressed this question by using the sequence data of the ENCODE consortium, which include 1% of mammalian genomes in 18 species
Sergey Nikolaev   +6 more
doaj   +1 more source

Campamento Vespucio, a new locality with Pleistocene mammals from Salta province, Argentina [PDF]

open access: yes, 2012
En la presente contribución damos a conocer una nueva localidad con mamíferos fósiles pleistocenos, provenientes de una región poco explorada. Los materiales fueron hallados en la Quebrada del Aguay, en Campamento Vespucio, localidad de General Mosconi ...
Francia, Analia   +3 more
core   +1 more source

Multi‐Species Canopy Latrines in Costa Rican Cloud Forests: A Mammal Interactions Hub in a Single Tree Species

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
We documented arboreal, multi‐species mammal latrines in montane cloud forests of Costa Rica by surveying 169 trees across 29 species. Latrines were found exclusively on Ficus tuerckheimii, with 11 occurrences across two mountain ranges and an additional observation in Honduras.
Jeremy Quirós‐Navarro   +2 more
wiley   +1 more source

The northern naked-tailed armadillo in the Lacandona rainforest, Mexico: new records and potential threats

open access: yesRevista 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

How is the third jaw joint in whales different? Diverse modes of articulation between the jaws of whales

open access: yesJournal 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

An Anatomical and Radiographic Study on the Vertebral Column of the Two-Toed Sloth (Choloepus hoffmanni)

open access: yesRevista Ciencias Veterinarias, 2021
The Choloepus Hoffmani is a mammal belonging to the Xenarthra superorder; xenarthrans are distributed from North to South America. It is common for these animals to require medical attention at wildlife rescue centers after being attacked by domestic ...
Maripaz Chinchilla-Barboza   +7 more
doaj   +1 more source

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