Results 11 to 20 of about 1,309 (177)

Estimación de la masa corporal en géneros del Orden Notoungulata

open access: yesEstudios Geologicos, 2012
Los Notoungulata son un grupo de mamíferos fósiles ampliamente diversos y sin representantes vivientes. Prácticamente no se disponen de estimaciones de la masa corporal para la mayoría de los géneros incluidos en este Orden, ni de un método objetivo para
A. Elissamburu
doaj   +7 more sources

Cranial Morphology of the Late Oligocene Patagonian Notohippid Rhynchippus equinus Ameghino, 1897 (Mammalia, Notoungulata) with Emphases in Basicranial and Auditory Region. [PDF]

open access: yesPLoS ONE, 2016
"Notohippidae" is a probably paraphyletic family of medium sized notoungulates with complete dentition and early tendency to hypsodonty. They have been recorded from early Eocene to early Miocene, being particularly diverse by the late Oligocene ...
Gastón Martínez   +3 more
doaj   +2 more sources

Un Hegetotheriidae (Mammalia, Notoungulata) basal del Mioceno temprano de Patagonia

open access: yesRevista Mexicana de Ciencias Geológicas, 2013
Hegetotheriidae constituye uno de los clados más derivados dentro del Orden Notoungulata. Ya diversificado en el Oligoceno tardío, sus representantes, muchos de aspecto gliriforme, son conspicuos componentes de las faunas de mamíferos terrestres ...
Ernesto Rodrigo Paz
doaj   +1 more source

Morphofunctional Space of the Forelimb in Caraguatypotherium munozi (Notoungulata; Mesotheriidae): Insights Into Wrist-Powered Digging. [PDF]

open access: yesJ Morphol
Caraguatypotherium munozi displays a distinctive morphofunctional configuration combining high wrist flexor leverage with reduced elbow mechanical advantage—traits consistent with wrist‐dominated scratch‐digging. Multivariate analyses place it outside the core morphospaces of extant locomotor groups.
Medina-González P, Moreno K.
europepmc   +2 more sources

Hypercanines: Not just for sabertooths. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract Hypercanines are here defined as hypertrophied caniniform teeth, that is, canine teeth that are elongated to serve specific functions in different clades of mammals and their synapsid ancestors. This article presents an overview of the occurrence of hypercanines, their growth, and their function across a broad range of clades.
Werdelin L.
europepmc   +2 more sources

UN NOTOUNGULATA DE LA FORMACIÓN VACA MAHUIDA (EOCENO), PROVINCIA DE LA PAMPA, ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2015
Sediments assigned to the Vaca Mahuida Formation outcrop at Sierra El Fresco area, southeast from Puelén, La Pampa Province. These sediments represent a depositional sequence in a depressed area, covered by a wide, fresh- to brackish- water lake. So far,
Claudia I. Montalvo, Mariano Bond
doaj   +1 more source

Bibliometric analysis of isotopic studies on Quaternary megafauna available in the Scopus database [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2022
The number of isotopic studies on Quaternary megafauna has increased over the last decades, yet, there is no published data addressing the status of scientific production of this research field.
LUCAS DE M. FRANÇA   +2 more
doaj   +1 more source

The counteracting effects of anthropogenic speciation and extinction on mammal species richness and phylogenetic diversity

open access: yesGlobal Ecology and Biogeography, Volume 31, Issue 9, Page 1810-1823, September 2022., 2022
Abstract Aim Human activities are causing massive increases in extinction rates but might also lead to drastic increases in speciation rates; for example, after human‐mediated spread of species to otherwise unreachable landmasses. The long‐term net anthropogenic effects on biodiversity therefore remain uncertain.
Søren Faurby   +3 more
wiley   +1 more source

The Miocene: The Future of the Past

open access: yesPaleoceanography and Paleoclimatology, Volume 36, Issue 4, April 2021., 2021
Abstract The Miocene epoch (23.03–5.33 Ma) was a time interval of global warmth, relative to today. Continental configurations and mountain topography transitioned toward modern conditions, and many flora and fauna evolved into the same taxa that exist today.
M. Steinthorsdottir   +22 more
wiley   +1 more source

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