Results 11 to 20 of about 4,757 (254)

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

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

Paleobiology in the Mediterranean

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

Ecomorphology and bone microstructure of Proterochampsia from the Chañares Formation [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Proterochampsians are a South American endemic group of non-archosaurian archosauriforms with morphological characteristics recollecting Recent crocodilians, and therefore have been proposed as aquatic species. However, this has not been based on careful
Andrea Arcucci   +2 more
doaj   +1 more source

Exploring the past to protect the future: an analysis of conservation paleobiology in South America [PDF]

open access: yesAnais da Academia Brasileira de Ciências
Conservation paleobiology, an expanding field, employs taphonomy tools to investigate past environmental conditions and organisms before human impacts, thereby addressing key conservation issues.
ANNA CLARA A. DE ASSUMPÇÃO   +1 more
doaj   +1 more source

Appendicular skeleton of Protoceratops andrewsi (Dinosauria, Ornithischia): comparative morphology, ontogenetic changes, and the implications for non-ceratopsid ceratopsian locomotion [PDF]

open access: yesPeerJ, 2019
Protoceratops andrewsi is a well-known ceratopsian dinosaur from the Djadokhta Formation (Upper Cretaceous, Mongolia). Since the 1920s, numerous skeletons of different ontogenetic stages from hatchlings to adults, including fully articulated specimens ...
Justyna Słowiak   +2 more
doaj   +2 more sources

Comparative bone microstructure of three archosauromorphs from the Carnian, Late Triassic Chañares Formation of Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2020
The Chañares Formation exhibits one of the most important archosauriform records of early Carnian ecosystems. Here we present new data on the palaeohistology of Chañares archosauriforms and provide new insights into their paleobiology, as well as ...
Jordi Alexis Garcia Marsà   +2 more
doaj   +1 more source

New data from the first discovered paleoparadoxiid (Desmostylia) specimen shed light into the morphological variation of the genus Neoparadoxia

open access: yesScientific Reports, 2022
Desmostylia is an extinct clade of marine mammals with two major sub-clades, Desmostylidae and Paleoparadoxiidae, known from Oligocene to Miocene strata of the North Pacific coastline.
Kumiko Matsui   +2 more
doaj   +1 more source

Faunal Assemblages From Lower Bed I (Oldupai Gorge, Tanzania)

open access: yesFrontiers in Ecology and Evolution, 2022
Palaeobiological and archeological excavations at the site of Ewass Oldupa, found in the western Plio-Pleistocene rift basin of Oldupai Gorge (also Olduvai Gorge), Tanzania, revealed rich fossiliferous levels and the earliest remains of human activity at
Pamela Akuku   +12 more
doaj   +1 more source

What are the limits on whale ear bone size? Non-isometric scaling of the cetacean bulla [PDF]

open access: yesPeerJ, 2021
The history of cetaceans demonstrates dramatic macroevolutionary changes that have aided their transformation from terrestrial to obligate aquatic mammals.
Sabrina L. Groves   +2 more
doaj   +2 more sources

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