Results 31 to 40 of about 7,472 (219)

Foot pressure distribution in White Rhinoceroses (Ceratotherium simum) during walking [PDF]

open access: yesPeerJ, 2019
White rhinoceroses (Ceratotherium simum) are odd-toed ungulates that belong to the group Perissodactyla. Being second only to elephants in terms of large body mass amongst extant tetrapods, rhinoceroses make fascinating subjects for the study of how ...
Olga Panagiotopoulou   +2 more
doaj   +2 more sources

New insight into the Pleistocene deposits of Monte delle Piche, Rome, and remarks on the biochronology of Hippopotamus (Mammalia, Hippopotamidae) and Stephanorhinus etruscus (Mammalia, Rhinocerotidae) in Italy [PDF]

open access: yes, 2015
Several large mammal assemblages have been collected in the Roman basin since the XIX century, but they usually lack any stratigraphic datum or details about the fossiliferous localities. In this work, the stratigraphic provenance of large mammal remains
Frezza, Virgilio   +2 more
core   +3 more sources

New material of Epiaceratherium and a new species of Mesaceratherium clear up the phylogeny of early Rhinocerotidae (Perissodactyla) [PDF]

open access: yesRoyal Society Open Science, 2020
Reduction of the anterior dentition (i.e. incisors and canines) is a major adaptative trait of the Rhinocerotidae among Perissodactyla. However, the corresponding evolutionary sequence was lacking a robust phylogenetic frame to support it thus far. Here,
Jérémy Tissier   +2 more
doaj   +1 more source

Historia del conocimiento de los perisodáctilos del Neógeno español

open access: yesEstudios Geologicos, 2006
En el presente trabajo, se realiza una breve historia del estudio de los Perisodáctilos del Neógeno de España. Abarca las distintas vicisitudes de estos estudios desde las primeras citas de su presencia en suelo español durante el siglo XIX hasta ...
E. Cerdeño, M. T. Alberdi
doaj   +1 more source

Serum testosterone concentrations, testicular biometry, and testicular tone in wild male lowland tapirs (Tapirus terrestris) in the Pantanal and Cerrado biomes, Brazil

open access: yesTheriogenology Wild, 2022
: This study aimed to contribute to the knowledge about the reproductive physiology of wild lowland tapirs (Tapirus terrestris) by describing the serum testosterone concentrations, testicular biometry, and testicular tone of individuals living in the ...
Andreza V. Brasil   +3 more
doaj   +1 more source

Hippidioll sp. (Mammalia, Perissodactyla. Equidae) en sedimentos del Pleistoceno superior del Uruguay (Edad Mamífero Lujanense)

open access: yesEstudios Geologicos, 1990
Se describen los restos más completos de Hippidion sp. reportados hasta el momento para el Pleistoceno de Uruguay. Corresponden a una forma robusta con extremidades anteriores relativamente cortas respecto del cráneo grande.
M. Ubilla, M. T. Alberdi
doaj   +1 more source

Hippidion Owen 1869 (Mammalia, Perissodactyla) en sedimentos del pleistoceno tardío de la localidad Barro Negro (Jujuy, Argentina)

open access: yesEstudios Geologicos, 1986
El presente estudio comprende los hallazgos realizados en la localidad de Barro Negro (Humahuaca, Jujuy, Argentina). Incluye una descripción y comentarios de los rasgos sobresalientes del material, así como aspectos estratigráficos y cronológicos ...
M. T. Alberdi   +3 more
doaj   +1 more source

Natural killer cell receptor genes in the family Equidae: not only Ly49. [PDF]

open access: yesPLoS ONE, 2013
Natural killer (NK) cells have important functions in immunity. NK recognition in mammals can be mediated through killer cell immunoglobulin-like receptors (KIR) and/or killer cell lectin-like Ly49 receptors.
Jan Futas, Petr Horin
doaj   +1 more source

Assessing the umbrella value of a range-wide conservation network for Jaguars (Panthera onca) [PDF]

open access: yes, 2016
Umbrella species are employed as conservation short-cuts for the design of reserves or reserve networks. However, empirical data on the effectiveness of umbrellas is equivocal, which has prevented more widespread application of this conservation strategy.
Adriaensen   +62 more
core   +1 more source

Macraucheniidae y Proterotheriidae (Mammalia, Litopterna) de Quebrada Fiera (Oligoceno tardío), Mendoza, Argentina [PDF]

open access: yes, 2019
In this contribution we present new specimens of Litopterna recovered during the last decade in Quebrada Fiera (Mendoza Province, Argentina), whose fossiliferous sediments, currently recognized as the base of Agua de la Piedra Formation, are assignable ...
Cerdeño Serrano, Maria Esperanza   +2 more
core   +1 more source

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