Results 131 to 140 of about 18,614 (286)

Climatic and tectonic controls on Late Triassic to Middle Jurassic sedimentation in northeastern Guangdong Province, South China

open access: yes, 2016
Stratigraphic analyses document climatic and tectonic controls on the filling of a Late Triassic to early Middle Jurassic (T3–J2) basin that developed on top of a young orogenic belt in southeastern South China.
Krapež, B.   +8 more
core   +1 more source

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

open access: yesJournal of Anatomy, EarlyView.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack   +2 more
wiley   +1 more source

MIDDLE TO LATE JURASSIC BIOFACIES OF SAUDI ARABIA

open access: yesRIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA, 2004
Rivista italiana di Paleontologia e Stratigrafia, Vol 110, No ...
openaire   +3 more sources

The White Stone Band of the Kimmeridge Clay Formation, an integrated high resolution approach to understanding environmental change

open access: yes, 2004
The Kimmeridge Clay is a Jurassic mudrock succession that shows Milankovitch Band climatic cyclicity. A key issue is to determine how the subtle changes that define this cyclicity result from climatic change.
Marshall, J.E.A.   +2 more
core  

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs

open access: yesJournal of Anatomy, EarlyView.
Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Samantha L. Beeston   +5 more
wiley   +1 more source

Geology of the Central High Atlas diapiric province (Rich-Imilchil): a cartographic synthesis

open access: yesJournal of Maps
We present a geological map of the Central High Atlas of Morocco (excluding the mountain fronts), illustrating a structure consisting of narrow ridges of lower Jurassic carbonates, occasionally cored by Triassic Keuper rocks and basalt, or by mid-late ...
Antonio Teixell   +2 more
doaj   +1 more source

Systematics and Phylogenetic Interrelationships of the Enigmatic Late Jurassic Shark <i>Protospinax annectans</i> Woodward, 1918 with Comments on the Shark-Ray Sister Group Relationship. [PDF]

open access: yesDiversity (Basel), 2023
Jambura PL   +12 more
europepmc   +1 more source

1D Basin Modelling of Upper Jurassic to Upper Cretaceous Source Rocks in the Southern Pletmos Sub‐Basin, Outeniqua Basin, Offshore South Africa

open access: yesJournal of Petroleum Geology, EarlyView.
ABSTRACT The Pletmos sub‐basin in the Outeniqua Basin, offshore South Africa, is divided by the Superior, Pletmos and Plettenberg faults into northern and southern depocentres. In this study, geological and organic geochemical data together with 1D basin modelling were used to investigate the burial, thermal and maturation histories, and the timing of ...
Fritz Ako Agbor   +4 more
wiley   +1 more source

Paleomagnetic Constraints on the Rapid Plate Shift of North China Block During the Jurassic From ∼155 Ma Dykes and Sills

open access: yesGeochemistry, Geophysics, Geosystems
A large‐scale apparent polar wander occurred during the Jurassic interval, which is interpreted as true polar wander (TPW). As the motion is nearly orthogonal to the TPW axis, the North China Block (NCB) experienced the largest latitudinal and ...
Pengfei Wang   +7 more
doaj   +1 more source

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