Results 11 to 20 of about 34,326 (336)

The anatomy, paleobiology, and evolutionary relationships of the largest extinct side-necked turtle [PDF]

open access: goldScience Advances, 2020
The largest extinct turtle from South America had males with horned shells. Despite being among the largest turtles that ever lived, the biology and systematics of Stupendemys geographicus remain largely unknown because of scant, fragmentary finds.
Edwin‐Alberto Cadena   +8 more
openalex   +2 more sources

A guide for microscopic description of fossil stromatolites [PDF]

open access: yesBrazilian Journal of Geology, 2023
Stromatolites are laminated biosedimentary structures of great importance for paleobiological, paleoecological, and paleoenvironmental analyses, mainly in Precambrian rocks. Their value is related to the glimpse of past life recorded in their lamination,
Evelyn Aparecida Mecenero Sanchez   +4 more
doaj   +1 more source

Looking Back for the Future: The Ecology of Terrestrial Communities Through the Lens of Conservation Paleobiology

open access: yesAnnual Review of Ecology, Evolution and Systematics, 2023
Terrestrial ecosystems encompass a vast and vital component of Earth's biodiversity and ecosystem services. The effect of increased anthropogenic dominance on terrestrial communities defines major challenges for ecosystem conservation, including habitat ...
Melissa E. Kemp   +8 more
semanticscholar   +1 more source

Shell variability in the stem turtles Proterochersis spp. [PDF]

open access: yesPeerJ, 2018
Background Turtle shells tend to exhibit frequent and substantial variability, both in bone and scute layout. Aside from secondary changes, caused by diseases, parasites, and trauma, this variability appears to be inherent and result from stochastic or ...
Tomasz Szczygielski   +2 more
doaj   +2 more sources

Theropod dinosaur facial reconstruction and the importance of soft tissues in paleobiology

open access: yesScience, 2023
Large theropod dinosaurs are often reconstructed with their marginal dentition exposed because of the enormous size of their teeth and their phylogenetic association to crocodylians. We tested this hypothesis using a multiproxy approach.
T. Cullen   +7 more
semanticscholar   +1 more source

Photosymbiosis in Late Triassic scleractinian corals from the Italian Dolomites [PDF]

open access: yesPeerJ, 2021
During the Carnian, oligotrophic shallow-water regions of the western Tethys were occupied by small, coral-rich patch reefs. Scleractinian corals, which already contributed to the formation of the reef structure, owed their position most probably to the ...
Katarzyna Frankowiak   +2 more
doaj   +2 more sources

The soft-tissue attachment scars in Late Jurassic ammonites from Central Russia [PDF]

open access: yesActa Palaeontologica Polonica, 2015
Soft-tissue attachment scars of two genera and four species of Late Jurassic craspeditid ammonites from the Russian Platform are described. A previously suggested relationship between lateral attachment scars and ammonoid hyponome is confirmed, however,
Aleksandr A. Mironenko
doaj   +1 more source

Paleobiology in the Mediterranean

open access: yesBollettino della Società Paleontologica Italiana, 2020
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Dominici S., Scarponi D.
openaire   +2 more sources

The Invasion of the Land in Deep Time: Integrating Paleozoic Records of Paleobiology, Ichnology, Sedimentology, and Geomorphology.

open access: yesIntegrative and Comparative Biology, 2022
The invasion of the land was a complex, protracted process, punctuated by mass extinctions, that involved multiple routes from marine environments.
L. Buatois   +8 more
semanticscholar   +1 more source

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