Results 31 to 40 of about 4,855 (225)

Did the climate changes cause the extinction of the Late Pleistocene gomphotheres in South America? [PDF]

open access: yesZoologia (Curitiba)
A global wave of megafauna extinctions occurred between 50,000 and 10,000 years ago, impacting numerous large continental mammals that are crucial to ecosystem dynamics.
Evelyn N.S. Cruz   +2 more
doaj   +1 more source

Diachroneity Rules the Mid-Latitudes: A Test Case Using Late Neogene Planktic Foraminifera across the Western Pacific

open access: yesGeosciences, 2022
Planktic foraminifera are commonly used for first-order age control in deep-sea sediments from low-latitude regions based on a robust tropical–subtropical zonation scheme.
Adriane R. Lam   +4 more
doaj   +1 more source

The Earliest Known Radiation of Pitheciine Primates. [PDF]

open access: yesAm J Primatol
Right mandible and dentition of the holotype of Soriacebus ameghinorum (MACN Pv SC2), from the Early Miocene of Patagonia, compared with the living Cacajao calvus (FMNH 88813, cast), both representing extinct and extant morphologies of the Pitheciinae: Procumbent and styliform incisors and projecting canines represent a morphological complex for ...
Novo NM   +3 more
europepmc   +2 more sources

Dimorphism in quaternary scelidotheriinae (mammalia, xenarthra, phyllophaga) [PDF]

open access: yes, 2015
The contributions concerning possible cases of sexual dimorphisms in fossil and living sloths are scarce. Until now, studies in fossil ground sloth sexual dimorphism have been limited to the subfamilies Megatheriinae (Eremotherium) and Mylodontinae ...
Miño Boilini, Ángel Ramón   +1 more
core   +1 more source

Nummulitids, lepidocyclinids and Sr-isotope data from the Oligocene of Kutch (western India) with chronostratigraphic and paleobiogeographic evaluations

open access: yesGeodinamica Acta, 2018
Due to its intermediate geographical position between the Mediterranean and W Pacific, the Oligocene shallow-marine sequence of Kutch (India) is of key importance in paleobiogeographical interpretations.
György Less   +5 more
doaj   +1 more source

Cnemidophorus hyperythrus [PDF]

open access: yes, 1998
Number of Pages: 6Integrative BiologyGeological ...
Crother, Brian I.   +2 more
core   +1 more source

Lepidorbitoides (Foraminifera) from the lower Maastrichtian Kallankuruchchi Formation, Cauvery Basin, India: Morphometry and paleobiogeography [PDF]

open access: yes, 2017
The southernmost occurrence of the early Maastrichtian larger benthic foraminifera (LBF) in Tethys is known from the Kallankuruchchi Formation in the Cauvery Basin, SE India, represented by Lepidorbitoides-Siderolites assemblages.
Chandra Somappa, S.   +6 more
core   +1 more source

Bartonian orthophragminids from the Fulra Limestone (Kutch, W India) and coeval units in Sulaiman Range, Pakistan: a synthesis of shallow benthic zone (SBZ) 17 for the Indian Subcontinent

open access: yesGeodinamica Acta, 2018
Orthophragminids from the Bartonian Fulra Limestone in Kutch, India and the coeval units in Sulaiman Range in Pakistan suggest the establishment of a significant number of endemic species in the Indian subcontinent (Eastern Tethys).
Ercan Özcan   +4 more
doaj   +1 more source

The Eocene South American metatherian Zeusdelphys complicatus is not a protodidelphidid but a hatcheriform: Paleobiogeographic implications [PDF]

open access: yesActa Palaeontologica Polonica, 2017
Zeusdelphys complicatus is one of the most enigmatic metatherians from the Itaboraí Basin. The type and only known specimen was previously regarded as the upper dentition of Eobrasilia; an M4 of a new taxon; an M3 of a Kollpaniidae (now regarded as a ...
Leonardo M. Carneiro   +1 more
doaj   +1 more source

The Diversity of South American Equus: Did Size Really Matter?

open access: yesFrontiers in Ecology and Evolution, 2019
The extant horse genus Equus originated in North America, probably during the late Miocene/early Pliocene, and its entrance into South America was possibly related to one of the last four stages of the Great American Biotic Interchange.
Helena Machado   +2 more
doaj   +1 more source

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