Results 41 to 50 of about 55,935 (264)

Postcranial osteology of the first early-stage juvenile skeleton of Plateosaurus trossingensis from the Norian of Frick, Switzerland [PDF]

open access: yesActa Palaeontologica Polonica, 2020
Owing to monospecific mass-accumulation sites in Central Europe, the early-branching sauropodomorph Plateosaurus has one of the best fossil records among dinosaurs. Despite this, early-stage juveniles have been conspicuously absent.
Darius Nau   +3 more
doaj   +1 more source

A microworld in Triassic amber [PDF]

open access: yesNature, 2006
Amber provides an effective medium for conservation of soft-bodied microorganisms, but finds older than 135 million years are very rare and have not so far contained any microbial inclusions. Here we describe 220-million-year-old droplets of amber containing bacteria, fungi, algae and protozoans that are assignable to extant genera.
SCHMIDT AR   +3 more
openaire   +4 more sources

Triassic actinopterygians across Tethys: state of the art [PDF]

open access: yesResearch & Knowledge, 2017
During the 5th International Meeting on Mesozoic Fishes held at Santillo, Mexico, we first presented the great novelty of the marine Triassic findings in southern China.
Andrea Tintori   +3 more
doaj   +1 more source

Main controlling factors and exploration direction of Permian to Triassic reservior in the central sag of Junggar Basin

open access: yesShiyou shiyan dizhi, 2022
In recent years, significant oil and gas discoveries have been achieved in the Permian Upper Wuerhe Formation and the Triassic Baikouquan Formation on the marginal slope of oil generation sag, Junggar Basin.
Zhongpei ZHANG   +7 more
doaj   +1 more source

New paleomagnetic data on the Permian-Triassic sedimentary sections of the Moscow syneclise

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2020
The results of a detailed paleomagnetic study of the following five Permian-Triassic sections of the Russian Platform were discussed: Slukino (Vladimir region), Sartakovo and Prudovka (Nizhny Novgorod region), Klykovo and Gavrino (Vologda region).
A.M. Fetisova   +2 more
doaj   +1 more source

A Flying Fish Across the Tethys: Thoracopterus wushaensis Tintori et al., 2012, from the Pelsa/Vazzoler Fossil-Lagerstätte (Late Ladinian, Middle Triassic) in the Dolomites (Italy)

open access: yesDiversity
For the first time, the same fish species is recorded from Triassic rocks at both ends of the Tethys, namely, Thoracopterus wushaensis Tintori et al., 2012.
Andrea Tintori
doaj   +1 more source

The Permian to Cretaceous succession at Permpasset, Wollaston Forland: the northernmost Permian and Triassic in North–East Greenland

open access: yesGEUS Bulletin, 2021
Permian to Triassic outcrops in East Greenland diminish significantly northwards. Understanding the northward extent, and nature, of the Permian and Triassic successions has implications for regional palaeogeographic reconstructions and exploration in ...
Steven D. Andrews   +5 more
doaj   +1 more source

Two types of bone necrosis in the Middle Triassic Pistosaurus longaevus bones: the results of integrated studies [PDF]

open access: yesRoyal Society Open Science, 2017
Avascular necrosis, diagnosed on the basis of either a specific pathological modification of the articular surfaces of bone or its radiologic appearance in vertebral centra, has been recognized in many Mesozoic marine reptiles as well as in present-day ...
Dawid Surmik   +3 more
doaj   +1 more source

A Hiatus Obscures the Early Evolution of Modern Lineages of Bony Fishes

open access: yesFrontiers in Earth Science, 2021
About half of all vertebrate species today are ray-finned fishes (Actinopterygii), and nearly all of them belong to the Neopterygii (modern ray-fins). The oldest unequivocal neopterygian fossils are known from the Early Triassic.
Carlo Romano
doaj   +1 more source

Evolution of the plants and invertebrates in the north of the Middle Siberia and environs at the Permian - Triassic boundary

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2017
Five adjacent eco-stratigraphic units have been considered (listed here, from the bottom to the top): eco-zones Cordaites clercii ... Abiella subovata (7 dominants of the plain sedtmentation level), Quadrocladus pachyphyllus ...
G. N. Sadovnikov
doaj   +1 more source

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