Results 1 to 10 of about 7,472 (219)

The petrosal and bony labyrinth of extinct horses (Perissodactyla, Equidae) and their implications for perissodactyl evolution [PDF]

open access: yesPeerJ
Perissodactyla, or odd-toed ungulates, are represented today by 16 species of rhinoceroses, tapirs, and horses. Perissodactyls were much more diverse in the past, having a rich fossil record spanning from the earliest Eocene (~56 Ma) to recent, including
Owen Axel Goodchild   +4 more
doaj   +3 more sources

Genetic characterization of the prion protein gene in camels (Camelus) with comments on the evolutionary history of prion disease in Cetartiodactyla [PDF]

open access: yesPeerJ
Transmissible spongiform encephalopathies (TSEs) are a fatal neurogenerative disease that include Creutzfeldt–Jakob disease in humans, scrapie in sheep and goats, bovine spongiform encephalopathy (BSE), and several others as well as the recently ...
Emily A. Wright   +5 more
doaj   +3 more sources

The Early Evolution of the Perissodactyla [PDF]

open access: yesEvolution; International Journal of Organic Evolution, 1969
Perissodactyls arose from phenacodontid condylarths in the late Paleocene, in a major adaptive shift involving two functional complexes: specialization of the limbs for running, including a radical remodelling of the ankle joint that restricted lateral movement, and a change in molar cusp pattern and jaw musculature that increased transverse shear ...
exaly   +3 more sources

Perissodactyla of the Sespe Eocene, California [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1936
One of the outstanding peculiarities of the Eocene faunas known from the Sespe deposits of California is the continued absence of any evidence of the Equidae. Aside from lack of representatives of this family, however, the Perissodactyla include members of the Rhinocerotoidea and Brontotheriidea.
exaly   +4 more sources

High-Altitude Drives the Convergent Evolution of Alpha Diversity and Indicator Microbiota in the Gut Microbiomes of Ungulates

open access: yesFrontiers in Microbiology, 2022
Convergent evolution is an important sector of evolutionary biology. High-altitude environments are one of the extreme environments for animals, especially in the Qinghai Tibet Plateau, driving the inquiry of whether, under broader phylogeny, high ...
Xibao Wang   +13 more
doaj   +1 more source

Hemochromatosis-like disease in Brazilian tapirs (Tapirus terrestris) in Pará state, Brazil

open access: yesActa Amazonica, 2022
We report two cases of hemochromatosis-like disease in captive Brazilian tapirs, Tapirus terrestris in Pará state, Brazil. Both animals presented symptoms of chronic hepatopathy associated with marked accumulation of hemosiderin.
Adrielli Heloise dos Anjos LIMA   +11 more
doaj   +1 more source

Braincase With Natural Endocast of a Juvenile Rhinocerotinae From the Late Middle Pleistocene Site of Melpignano (Apulia, Southern Italy)

open access: yesFrontiers in Earth Science, 2020
Cranial remains of juvenile fossil rhinoceroses are rarely described in literature and very few is known about the ontogenetic development of their inner anatomy.
Dawid A. Iurino   +5 more
doaj   +1 more source

Grandes mamíferos del yacimiento viIlafranquiense de Casablanca I,. Almenara (Castellón)

open access: yesEstudios Geologicos, 1985
El yacimiento cárstico de Casablanca I (Almenara, prov. Castellón) proporciona la siguiente asociación do macromamíferos: Ursus etruscus, Pachycrocuta cf. brevirostris, Felis sp., Equus stenonis ssp., Rhinocerotidae indet. . Cervus cf.
E. Soto, J. Morales
doaj   +1 more source

Nova Ocorrência de Mamíferos do Quaternário nos Tanques de Taperoá (Paraíba) e Alagoinha (Pernambuco), Nordeste do Brasil: Implicações Paleoambientais [PDF]

open access: yesAnuário do Instituto de Geociências, 2017
Este trabalho reporta novas ocorrências de mamíferos da Megafauna do Quaternário nos sítios paleontológicos de Campo Alegre (município de Taperoá, estado da Paraíba) e Lage Grande (município de Alagoinha, estado de Pernambuco), Nordeste do Brasil.
Hermínio Ismael de Araújo-Júnior   +3 more
doaj   +1 more source

Révision systématique des Hipparion sensu lato (Perissodactyla, Equidae) de l’Ancien Monde

open access: yesEstudios Geologicos, 2005
La sistemática de Hipparion sensu lato del Antiguo Mundo se caracteriza por una multiplicación excesiva de especies relacionadas con este grupo y una marcada controversia sobre el status supraespecífico que trae consigo una confusión general de su ...
S. Zouhri, A. Bensalmia
doaj   +1 more source

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