Results 21 to 30 of about 6,336 (243)

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

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

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

A Large Morganucodontan Mammaliaform from the Late Jurassic of Germany [PDF]

open access: yesFossil Imprint, 2019
Abstract An upper “triconodont” molar from the Late Jurassic (late Kimmeridgian) of the Langenberg Quarry in northern Germany is attributed to Storchodon cingulatus gen. et sp. nov. of Morganucodonta. The molar is characterized by continuous lingual and buccal cingula, and a relatively large, buccally-shifted cusp D which is not integrated in the ...
Martin, Thomas   +4 more
openaire   +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

Initial results of coring at Prees, Cheshire Basin, UK (ICDP JET project): towards an integrated stratigraphy, timescale, and Earth system understanding for the Early Jurassic [PDF]

open access: yesScientific Drilling, 2023
Drilling for the International Continental Scientific Drilling Program (ICDP) Early Jurassic Earth System and Timescale project (JET) was undertaken between October 2020 and January 2021. The drill site is situated in a small-scale synformal basin of the
S. P. Hesselbo   +74 more
doaj   +1 more source

Late Jurassic salamandroid from western Liaoning, China [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
A Jurassic salamander, Beiyanerpeton jianpingensis (gen. et sp. nov.), from a recently found site in western Liaoning Province, China is the earliest known record of Salamandroidea. As a Late Jurassic record of the group, it extends the range of the clade by ~40 Ma. The Late Jurassic taxon is
Ke-Qin, Gao, Neil H, Shubin
openaire   +2 more sources

A record of Late Jurassic vertebrates from Texas

open access: yesRocky Mountain Geology, 2023
ABSTRACT We present the first description of Jurassic vertebrate fossils from Texas. The vertebrate specimens were collected from the Upper Jurassic Malone Formation in the Malone Mountains of western Texas. The specimens are fragmentary and not particularly diagnostic, but probably represent elements of plesiosaurians.
Steven R. May   +6 more
openaire   +1 more source

A Piranha-like Pycnodontiform Fish from the Late Jurassic [PDF]

open access: yesCurrent Biology, 2018
Pycnodontiformes are an extinct order of ray-finned fishes from the Triassic to Eocene [1, 2], with a characteristic crushing dentition reflecting a highly specialized diet [3]. However, our discovery of a new pycnodontiform from the Late Jurassic (ca.
Kölbl-Ebert, Martina   +3 more
openaire   +3 more sources

Ophiolitic detritus in Kimmeridgian resedimented limestones and its provenance from an eroded obducted ophiolitic nappe stack south of the Northern Calcareous Alps (Austria)

open access: yesGeologica Carpathica, 2015
The causes for the Middle to Late Jurassic tectonic processes in the Northern Calcareous Alps are still controversially discussed. There are several contrasting models for these processes, formerly designated “Jurassic gravitational tectonics”.
Gawlick Hans-Jürgen   +4 more
doaj   +1 more source

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