Results 21 to 30 of about 9,784 (279)

PALYNOLOGY EVIDENCES OF HITHERTO UNRECOGNISED JURASSIC SEDIMENTATION IN RAJMAHAL BASIN, INDIA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2004
In Rajmahal Basin the Upper Gondwana (Mesozoic) sequences are represented by the Dubrajpur and Rajmahal Formations. Palynologically, the Dubrajpur Formation is shown to be a time transgressive unit spanning from Early Triassic to Early Cretaceous. Out of
ARCHANA TRIPATHI
doaj   +1 more source

Mesozoic and Cenozoic diktyogenese in the Lower Yangtze region

open access: yesShiyou shiyan dizhi, 2020
Three stages of metamorphic tectonic movements took place in the Lower Yangtze region due to the joint action of the Tethys and the Pacific plates from the Middle/Late Triassic to the Early/Middle Jurassic, the Late Jurassic to the Early Cretaceous, and ...
Daogui DING, Fengli LI
doaj   +1 more source

Tracking Late Jurassic ornithopods in the Lusitanian Basin of Portugal: Ichnotaxonomic implications [PDF]

open access: yesActa Palaeontologica Polonica, 2020
The Sociedade de História Natural in Torres Vedras, Portugal houses an extensive collection of as yet undescribed dinosaur tracks with ornithopod affinities.
Diego Castanera   +4 more
doaj   +1 more source

Middle – Late Jurassic (Late Bathonian – Tithonian) Palynomorphs

open access: yesJournal of Micropalaeontology, 1985
Abstract. INTRODUCTIONJurassic palynomorph assemblages have been recovered in numerous wells in northeast Libya. Jurassic rocks reflect changing sedimentary environments which have greatly influenced the composition of the palynological assemblages.In the northernmost area, Jurassic sediments unconformably overlie the Palaeozoic or Triassic and show a ...
Thusu, B., Vigran, J. O.
openaire   +2 more sources

Neotethyan Ankara Melange, central Turkey: Formation by accretion of seamounts and supra-subduction zone ophiolites in an oceanic fore-arc setting

open access: yesJournal of Asian Earth Sciences: X, 2023
The Neotethyan Ankara Melange is a global reference for oceanic accretionary processes preserved in a collisional orogen. Here we show, based on eight representative outcrops around Ankara, that the melange encompasses stratigraphically coherent volcanic-
Alastair H.F. Robertson   +4 more
doaj   +1 more source

Trans-border (north-east Serbia/north-west Bulgaria) correlations of the Jurassic lithostratigraphic units [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2011
Herein, correlations of the Jurassic sediments from NE Serbia with those of NW Bulgaria are made. The following Jurassic palaeogeographic units: the Eastern Getic, the Infra-Getic and the Moesian Platform are included in the study.
Tchoumatchenco Platon   +4 more
doaj   +1 more source

Sauropodomorph evolution across the Triassic–Jurassic boundary: body size, locomotion, and their influence on morphological disparity

open access: yesScientific Reports, 2021
Sauropodomorph dinosaurs were the dominant medium to large-sized herbivores of most Mesozoic continental ecosystems, being characterized by their long necks and reaching a size unparalleled by other terrestrial animals (> 60 tonnes).
Cecilia Apaldetti   +3 more
doaj   +1 more source

New macronarian from the Middle Jurassic of Chongqing, China: phylogenetic and biogeographic implications for neosauropod dinosaur evolution

open access: yesRoyal Society Open Science, 2022
Macronaria is a clade of gigantic body-sized sauropod dinosaurs widely distributed from the Late Jurassic to the Late Cretaceous globally. However, its origin, early diversification, and dispersal are still controversial.
Hui Dai   +11 more
doaj   +1 more source

Ornithischian dinosaurs in Southeast Asia: a review with palaeobiogeographic implications [PDF]

open access: yesFossil Record, 2023
Ornithischian dinosaurs have been discovered in Thailand, Laos, and Malaysia. These bird-hipped herbivores remain relatively rare by comparison with saurischian dinosaurs.
Sita Manitkoon   +4 more
doaj   +3 more sources

Protolith age of the Altar and Carnero complexes and latest Cretaceous–Miocene deformation in the Caborca–Altar region of northwestern Sonora, Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2019
In the Caborca–Altar area of northwest Sonora, variably deformed and metamorphosed sedimentary and volcanic rocks crop out in a northwest-southeast–trending belt (El Batamote belt) at least 70 km long.
Carl E. Jacobson   +5 more
doaj   +1 more source

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