Results 1 to 10 of about 645 (184)

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   +8 more sources

Paleohistology of Caraguatypotherium munozi (Mammalia, Notoungulata, Mesotheriidae) from the early late Miocene of northern Chile: A preliminary ontogenetic approach. [PDF]

open access: yesPLoS ONE, 2023
The Miocene Caragua fossil fauna in northern Chile contains a considerable number (7) of articulated partial skeletons tentatively assigned to Caraguatypotherium munozi (Notoungulata, Mesotheriidae), which presents up to 40% body size difference.
Jorge Campos-Medina   +4 more
doaj   +3 more sources

Phylogeny and paleobiogeography of Hegetotheriidae (Mammalia, Notoungulata) [PDF]

open access: yesJournal of Vertebrate Paleontology, 2017
Hegetotheriidae es una de las familias más derivadas del orden Notoungulata. Se compone de dos subfamilias: Hegetotheriinae, que se resuelve como parafilética en las filogenias más recientes, y Pachyrukhinae, que históricamente se considera monofilética.
Esperanza Cerdeno
exaly   +5 more sources

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   +4 more sources

Pleistocene South American native ungulates (Notoungulata and Litopterna) of the historical Roth collections in Switzerland, from the Pampean Region of Argentina [PDF]

open access: yesSwiss Journal of Palaeontology, 2023
The fossil collections made by early explorers in South America have been fundamental to reveal the past diversity of extinct mammals and unravel their evolutionary history.
Juan D. Carrillo, Hans P. Püschel
doaj   +2 more sources

From fossil trader to paleontologist: on Swiss-born naturalist Santiago Roth and his scientific contributions [PDF]

open access: yesSwiss Journal of Palaeontology, 2023
Roth’s explorations, the resulting collections many now allocated in La Plata, Zurich, Geneva and Copenhagen, and his significant contributions in geological—especially stratigraphic—and paleontological topics, are a paradigmatic case for the global ...
Marcelo R. Sánchez-Villagra   +3 more
doaj   +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

Morphofunctional Spaces from the Astragalus: Exploring Angular Excursions and Mechanical Efficiency in Caraguatypotherium munozi (Notoungulata, Mesotheriidae) [PDF]

open access: yesBiology
The astragalus is a key biomechanical link between the autopodium and limb in mammals, modulating stability and mobility during stance. Its morphology provides reliable proxies for inferring posture, body mass, and locomotor behavior in extinct taxa ...
Paul Medina-González
doaj   +2 more sources

Ontogenetic variations and structural adjustments in mammals evolving prolonged to continuous dental growth [PDF]

open access: yesRoyal Society Open Science, 2017
Studying dental ontogeny in mammals can provide valuable insight on the evolution of their masticatory apparatus and their related adaptations. The multiple acquisitions of a prolonged to continuous growth of teeth in herbivorous mammals in response to ...
Helder Gomes Rodrigues   +4 more
doaj   +2 more sources

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