Results 41 to 50 of about 645 (184)
En la presente contribución damos a conocer una nueva localidad con mamíferos fósiles pleistocenos, provenientes de una región poco explorada. Los materiales fueron hallados en la Quebrada del Aguay, en Campamento Vespucio, localidad de General Mosconi ...
G. G. Zacarías +3 more
doaj +1 more source
Se analizaron las características fosildiagenéticas, incluyendo aspectos mineralógicos, geoquímicos y paleohistológicos, presentes en costillas de Toxodon platensis Owen (Mammalia, Notoungulata, Toxodontidae).
Rodrigo L. Tomassini +4 more
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Structural variation of the masseter muscle in Typotheria (Mammalia, Notoungulata)
The great morphologic diversity of the order Notoungulata is evident in remarkable traits, such as the body size, and this group includes from small, rodent size animals (e.g., Punapithecus) to forms exceeding 1000 kg in weight (e.g., Trigodon). Moreover, several cases of convergence with other placentals are known within the group, with rodent-like ...
SOSA, Luis Marcelo +1 more
openaire +3 more sources
Abstract Taphonomic studies of Cenozoic mammals are scarce. We report a study of the taphonomy of the Corralito site (Middle Pleistocene to Holocene), Córdoba Province, Argentina, which documents the last population of the South American native ungulate typotherid Mesotherium cristatum. We discovered two specimens of M.
Marcos Fernández‐Monescillo +6 more
wiley +1 more source
The Initial Opening of the Drake Passage Occurred During ca. 62‐59 Ma
Abstract Although the Drake Passage has been considered a critical component of ocean circulation and climate, its initial opening age remains controversial due to the weak constraints on the paleoposition of the Antarctic Peninsula. Here, new zircon U‐Pb geochronological studies are conducted on the Barchans Islands, providing a critical age ...
Liang Gao +16 more
wiley +1 more source
Postnatal ontogenetic scaling of Nesodontine (Notoungulata, Toxodontidae) cranial morphology
AbstractCassini G.H., Flores D.A. and Vizcaíno S.F. 2012. Postnatal ontogenetic scaling of Nesodontine (Notoungulata, Toxodontidae) cranial morphology. —Acta Zoologica (Stockholm) 93: 249–259.Toxodontidae is a clade of endemic South American ungulates that comprises medium to very large animals, including strict megammamals, i.e., 1000 kg or more ...
Cassini, Guillermo Hernán +2 more
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Considerações Paleoecológicas sobre os Notoungulados da Formação Tremembé,Bacia de Taubaté (São Paulo, Brasil). [PDF]
Notoungulates were recovered from bentonitic clays of the Tremembé Formation (Taubaté Basin).Two families, three genres and two species are known so far: Leontinidae (Taubatherium paulacoutoi and ?Ancylocoelus) and Notohippidae (Rhychippus brasiliensis).
Diogo Jorge de Melo +2 more
doaj
We show that excluding native grazers from a South American grassy ecosystem leads to strong declines in plant species richness over an 18‐month period. Our results imply that severely defaunated South American ecosystems have retained plant taxa and functional trait complexes that can tolerate intense herbivory, identifying herbivore reintroductions ...
Julia C. Mata +6 more
wiley +1 more source
Phylogenetic revision of the South American notopithecines (Mammalia: Notoungulata)
A phylogenetic analysis of all Eocene taxa assigned to Notopithecinae has been conducted, evaluating relationships amongst notopithecines, basal interatheriids and Interatheriinae. Other groups of native ungulates were also included. New dental and postcranial characters are considered with respect to previously published data; some characters are ...
openaire +2 more sources
FIG. 19. — I2/ de Toxodon platensis Owen, 1837, Toca da Barra do Antonião, n° 7373. Échelle: 5 cm.Published as part of Guérin, Claude & Faure, Martine, 2013, Un nouveau Toxodontidae (Mammalia, Notoungulata) du Pléistocène supérieur du Nordeste du Brésil,
Guérin, Claude, Faure, Martine
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