Results 31 to 40 of about 5,569 (256)

Registros paleógenos de glyptodontidae propalaehoplophorinae (xenarthra, cingulata) en áreas extrapatagónicas [PDF]

open access: yes, 2016
Los registros paleógenos de Cingulata Glyptodontidae son muy escasos y los mejores conocidos provienen de la actual región patagónica de Argentina. Dos subfamilias han sido descritas: Glyptatelinae y Propalaehoplophorinae.
Cuaranta, Pedro   +5 more
core   +3 more sources

The PteridoPortal: A publicly accessible collection of over three million records of extant and extinct pteridophytes. [PDF]

open access: yesAppl Plant Sci
Abstract Premise Pteridophytes—vascular land plants that disperse by spores—are a powerful system for studying plant evolution, particularly with respect to the impact of abiotic factors on evolutionary trajectories through deep time. However, our ability to use pteridophytes to investigate such questions—or to capitalize on the ecological and ...
Rothfels CJ   +67 more
europepmc   +2 more sources

Crotalus enyo [PDF]

open access: yes, 1994
Number of Pages: 6Integrative BiologyGeological ...
Beaman, Kent R., Grismer, L. Lee
core   +1 more source

Permian ammonoids: Results and prospects of research in Russia and other post-Soviet states

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2021
The paper aims to introduce the history of Russian and Soviet study of Permian ammonoids, from the middle of the 19th century to the present, to a wider audience of geologists, and particularly to a younger generation of students and researchers ...
T.B. Leonova
doaj   +1 more source

Crotalus catalinensis [PDF]

open access: yes, 2001
Number of Pages: 4Integrative BiologyGeological ...
Beaman, Kent R., Wong, Nelson
core   +1 more source

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

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

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

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

Cnemidophorus hyperythrus [PDF]

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

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