Results 31 to 40 of about 18,614 (286)

Anatomy and cranial functional morphology of the small-bodied dinosaur Fruitadens haagarorum from the Upper Jurassic of the USA. [PDF]

open access: yes, 2012
Heterodontosaurids are an important but enigmatic and poorly understood early radiation of ornithischian dinosaurs. The late-surviving heterodontosaurid Fruitadens haagarorum from the Late Jurassic (early Tithonian) Morrison Formation of the western USA ...
Chiappe, Luis M.   +20 more
core   +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

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 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

New ophthalmosaurid ichthyosaurs from the European lower cretaceous demonstrate extensive ichthyosaur survival across the Jurassic–Cretaceous boundary [PDF]

open access: yes, 2012
Background Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one ...
Ralf Kosma (189585)   +65 more
core   +1 more source

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

A taxonomic review of the Late Jurassic eucryptodiran turtles from the Jura Mountains (Switzerland and France) [PDF]

open access: yesPeerJ, 2014
Background. Eucryptodiran turtles from the Late Jurassic (mainly Kimmeridgian) deposits of the Jura Mountains (Switzerland and France) are among the earliest named species traditionally referred to the Plesiochelyidae, Thalassemydidae, and Eurysternidae.
Jérémy Anquetin   +2 more
doaj   +2 more sources

Tectonostratigraphic evolution of the Slyne Basin [PDF]

open access: yesSolid Earth, 2022
The Slyne Basin, located offshore NW Ireland, is a narrow and elongated basin composed of a series of interconnected grabens and half-grabens, separated by transfer zones coincident with deep crustal structures formed during the Silurian- to Devonian ...
C. M. O'Sullivan   +11 more
doaj   +1 more source

Seawater redox variations during the deposition of the Kimmeridge Clay Formation, United Kingdom (Upper Jurassic): evidence from molybdenum isotopes and trace metal ratios [PDF]

open access: yes, 2010
The Kimmeridge Clay Formation (KCF) and its equivalents worldwide represent one of the most prolonged periods of organic carbon accumulation of the Mesozoic.
Pearce, Christopher R.   +5 more
core   +1 more source

Jurassic sedimentary evolution of southern Junggar Basin: Implication for palaeoclimate changes in northern Xinjiang Uygur Autonomous Region, China

open access: yesJournal of Palaeogeography, 2014
Junggar Basin, located in northern Xinjiang, presents continuous and multikilometer-thick strata of the Jurassic deposits. The Jurassic was entirely terrestrial fluvial and lacustrine deltaic sedimentation.
Shun-Li Li   +3 more
doaj   +1 more source

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