Results 51 to 60 of about 2,737 (210)

Análise morfológica de pelos dos xenarthra brasileiros [PDF]

, 2020
Orientador: Prof. Dr. Emygdio Leite de Araujo Monteiro-FilhoDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Zoologia.
Santos, Lucas Enes
core  

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, A. M. Mossor, J. A. Avey‐Arroyo, M. T. Butcher   +3 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, Cuadrelli, Francisco, Tomassini, Rodrigo Leandro, De Los Reyes, Martín, Luna, Carlos, Toriño, Pablo   +5 more
openaire   +2 more sources

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

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

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

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, Siam Chiquillo-Vergara, Valeria Delgado-Álvarez, Susan Gutiérrez-Gutiérrez, Johnny Steven Mora-Aleman, Jonathan Gerardo Páez-Padilla, Jorge Sanchez-Bermudez, Andréia Passos-Pequeno   +7 more
doaj   +1 more source

Virtual brain endocasts of the palaeanodont Metacheiromys marshi and the neurosensory evolution of early Pholidotamorpha

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, Raquel Moya‐Costa, John R. Wible, Stephen L. Brusatte, Ornella C. Bertrand   +4 more
wiley   +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, Cordeiro de Castro, Mariela, Galliari, Fernando Carlos, Carlini, Alfredo Armando, Asher, Robert J.   +4 more
openaire   +3 more sources

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, John Gatesy, William J Murphy, Oliver A Ryder, Mark S Springer   +4 more
doaj   +1 more source

Genetic diversity of mammalian trypanosomatids from Magnorder Xenarthra in the Amazonian biome.

, 2017
As espécies de mamíferos da Magnaordem Xenarthra podem apresentar infecção por diversas espécies de parasitas da Família Trypanosomatidae, incluindo representantes dos gêneros Trypanosoma, Endotrypanum e Leishmania.
Vultão, Juliana Gaboardi
core   +1 more source

Some natural history notes on Paraguayan armadillos (Xenarthra, Chlamyphoridae) Tolypeutes matacus and Euphractus sexcinctus

Xenarthra
We 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, Rebecca L. Smith, Matthew T. Owen   +2 more
doaj   +1 more source