Results 1 to 10 of about 26,797 (221)

Systematic revision of a Miocene sperm whale from Patagonia, Argentina, and the phylogenetic signal of tympano-periotic bones in Physeteroidea [PDF]

open access: yesActa Palaeontologica Polonica, 2021
Sperm whales (Physeteroidea) include today only two genera of morphologically disparate odontocetes: the largest toothed whale known (Physeter macrocephalus) and small sized forms (Kogia spp.).
Florencia Paolucci   +3 more
doaj   +1 more source

Diversity and Relative Abundance of Ungulates and Other Medium and Large Mammals in Flooded Forests in the Dahomey Gap (Togo)

open access: yesAnimals, 2022
“The Dahomey Gap” is a human-derived mostly savannah region that separates the Guineo-Congolian rainforest block into two major units: the Upper Guinean and the Lower Guinean Forest blocks.
Gabriel Hoinsoudé Segniagbeto   +7 more
doaj   +1 more source

The paleoecology of the Late Miocene mammals from the Optima Local Fauna of Oklahoma, USA [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The Optima Local Fauna represents an important glimpse into the ecological transition between savannah and grassland during the late Miocene (Hemphillian) of what is now the southcentral Great Plains of North America.
JOSEPH A. FREDERICKSON   +6 more
doaj   +1 more source

Formation of fauna of Mammals of the Samara region in Pleistocene

open access: yesЮг России: экология, развитие, 2015
Mammalia Fauna Evolution of Samara Region was begun at the Middle Pliocene. Most of founded fossil Mammalia are steppen forms (67%). Forest forms (25%) appeared later.
E. Yu. Rigina, A. V. Vinogradov
doaj   +1 more source

Ungulates of the middle Miocene Monarch Mill Formation, Churchill County, Nevada, USA [PDF]

open access: yesActa Palaeontologica Polonica, 2022
A middle Miocene, early Barstovian land mammal age vertebrate assemblage, the Eastgate local fauna (LF), is known in the basal-most part of the Monarch Mill Formation.
KENT S. SMITH   +2 more
doaj   +1 more source

New Eocene South American native ungulates from the Quebrada de los Colorados Formation at Los Cardones National Park, Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2021
In the last few years, the Quebrada de Los Colorados Formation has become an important middle Eocene fossiliferous unit in Northwestern Argentina. In this unit, the South American native ungulates were until now only represented by the order Notoungulata,
Mercedes Fernández   +6 more
doaj   +1 more source

Will future extinctions occur at the same places where the past ones did? A review involving mammals and the IUCN Red List

open access: yesNature Conservation Research: Заповедная наука, 2023
Eighty-five mammal species are classified worldwide as Extinct on the IUCN Red List. In this study, we aimed to assess to which Orders these species belong, when they became extinct and the factors that led to their extinction.
Matheus C. Drago, Davor Vrcibradic
doaj   +1 more source

Postcranial remains of basal typotherian notoungulates from the Eocene of northwestern Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2020
Notoungulates represent the most taxonomically diverse and temporally and geographically widespread group among South American native ungulates. Here, we analyze anatomical and systematic aspects of proximal tarsal bones recovered from the Lower and ...
Matías A. Armella   +6 more
doaj   +1 more source

Les ruminantia (Artiodactyla, Mammalia) du miocene des bugti (Balouchistan, Pakistan)

open access: yesEstudios Geologicos, 2001
La revisión de los materiales descritos por Pilgrim (1908, 1911, 1912, Forster Cooper, 1915) junto al estudio de los hallazgos recientes realizados en el sinclinal de Dera Bugti (Sur de Paquistán) por Welcomme et al. (1997), nos permite reconocer en esta
L. Ginsburg, J. Morales, D. Soria
doaj   +1 more source

Medium and large-sized mammals in an Atlantic Forest fragment of Brazil: recording of threatened species

open access: yesJournal of Threatened Taxa, 2019
Deforestation and habitat fragmentation affect to a great extent larger wild mammals, which require large areas to establish their populations.  These mammals can have important functions in the structure and dynamics of tropical forests, acting as seed ...
Vinícius Nunes Alves   +3 more
doaj   +1 more source

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