Results 41 to 50 of about 1,366 (173)
Hoffmann's two‐toed sloth I: Complete myology in the thoracic limb of Choloepus (Pilosa: Xenarthra)
Journal of Anatomy, EarlyView.Two‐toed sloths use their thoracic limbs for more frequent and prolonged suspensory support than three‐toed sloths and accordingly demonstrate myological traits consistent with stability of the pectoral girdle, enhanced flexor force/torque applied at the elbow joint, and grip on the support.
C. S. Tucker +3 more
wiley +1 more source
Journal of Anatomy, EarlyView.We describe the endocranial anatomy of Metacheiromys marshi. Decrease in olfaction and eye movement control occurred through time in Pholidotamorpha and is likely linked to fossorial adaptations. The development of the orbital gyrus might be related to the evolution of myrmecophagy and the emergence of a protrusile tongue in early Pholidotamorpha ...
Eduard Cabasés Bru +4 more
wiley +1 more source
On the status of “ Urotherium antiquum ” (Ameghino) (Xenarthra, Glyptodontidae)
Comptes Rendus Palevol, 2017 Abstract Within the Late Neogene Glyptodontidae of the Pampean region of Argentina, “Urotherium antiquum” was described on the basis of some associated osteoderms of the dorsal carapace, which in addition include a partial skull and left hemimandible.
Zurita, Alfredo Eduardo +5 more
openaire +2 more sources
CONSERVATION PERSPECTIVES FOR A HIGHLY DISPARATE LINEAGE OF MAMMALS: THE XENARTHRA
Mastozoología Neotropical, 2020 Los xenartros son un grupo de mamíferos endémicos de América que contiene dos clados distintos, Pilosa (hormigueros y perezosos) y Cingulata (armadillos).La asociación entre los xenartros y el hombre se remonta a tiempos remotos. Si bien algunas asociaciones pueden no haber representado un impacto negativo significativo en las poblaciones silvestres ...
Superina, Mariella, Abba, Agustin Manuel
openaire +2 more sources
From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy
The Anatomical Record, Volume 309, Issue 8, Page 2199-2220, August 2026.Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza +5 more
wiley +1 more source
Molecular and morphological baraminology of Xenarthra
, 2023 There are 31 xenarthran species living today, made up of armadillos, anteaters, and sloths. These animals are characterized by a narrow, elongated skull and a unique vertebral process in the posterior trunk. Xenarthra represents an apobaramin within which several holobaramins may be discerned, using both mitochondrial DNA and morphological data.
openaire +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
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
Revista 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
Ecology 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