Results 1 to 10 of about 70,293 (211)

The largest theropod track site in Yunnan, China: a footprint assemblage from the Lower Jurassic Fengjiahe Formation [PDF]

open access: yesPeerJ, 2021
Yunnan Province is famous for its diversified Lufeng vertebrate faunas containing many saurischian dinosaur remains. In addition to the body fossil record, dinosaur ichnofossils have also been discovered in Yunnan, and the number of published track sites
Hongqing Li   +4 more
doaj   +3 more sources

First record of Gyrosteus mirabilis (Actinopterygii, Chondrosteidae) from the Toarcian (Lower Jurassic) of the Baltic region [PDF]

open access: yesPeerJ, 2020
An isolated hyomandibula from a lower Toarcian carbonate concretion of the Ahrensburg erratics assemblage (Schleswig-Holstein, northern Germany) represents the first record of a chondrosteid fish from the Lower Jurassic of the southwestern Baltic realm ...
Jahn J. Hornung, Sven Sachs
doaj   +3 more sources

Petroleum potential of Lower Jurassic and Pre-Jurassic reservoirs of Ust-Tym megadepresion

open access: yesГеофизический журнал, 2015
The relevance of the research is caused by the need of reproduction of oilfields area resource base in southeast of Western Siberia. The main aim of the research is to identify and to propose the priority areas for exploration and development of oil and
G.A. Lobova   +3 more
doaj   +3 more sources

The Jurassic of Denmark and Greenland: The Lower Jurassic of Europe: its subdivision and correlation [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2003
The Lower Jurassic Sub-system comprises four stages, in chronological order, the Hettangian, Sinemurian, Pliensbachian and Toarcian. Each stage is subdivided into a sequence of `standard zones' (= chronozones) and subzones - each correlated primarily on ...
Page, Kevin N.
doaj   +1 more source

Lower Jurassic beds with bivalves in south Slovenia

open access: yesGeologija, 1995
The Lower Jurassic beds of south Slovenia outcrop on a surface of several hundred km^ with their thickness in places exceeding 300 meters. They were deposited on the Dinaric Carbonate Platform.
Irena Debeljak, Stanko Buser
doaj   +3 more sources

Sedimentological and paleontological analysis of the Lower Jurassic part of the Zatrnik Formation on the Pokljuka plateau, Slovenia

open access: yesGeologija, 2021
The uppermost Ladinian to Lower Jurassic Zatrnik Formation is the lithostratigraphic unit of the Mesozoic deeper marine Bled Basin. The uppermost part of the Zatrnik Formation and the transition into the overlying Ribnica Breccia was logged at the ...
Luka GALE   +3 more
doaj   +1 more source

Multi-method study of the Roman quarry at Podpeč sedimentary succession and stone products

open access: yesGeologija, 2022
The paper presents a multi-method characterisation of the Roman quarry of the middle Lower Jurassic (Pliensbachian) limestone situated in the village of Podpeč, south of Ljubljana, and examples of the placement of stone products made from micritic, fine ...
Rok Brajkovič, Luka Gale, Bojan Djurić
doaj   +1 more source

Tectonic evolution and its control on oil–gas accumulation in southern East China Sea since the Jurassic

open access: yesFrontiers in Earth Science, 2023
Based on the results from the previous research on Mesozoic igneous rocks, as well as tectonic environments in the northern South China Sea and southern East China Sea (NSCS-SECS), geophysical parameters, strata, and characteristics of seismic facies in ...
Mingjian Wang   +6 more
doaj   +1 more source

A Turiasaurian (Dinosauria, Sauropoda) Tooth from the Pliensbachian Hasle Formation of Bornholm, Denmark, Shows an Early Jurassic Origin of the Turiasauria

open access: yesDiversity, 2023
Turiasauria is a clade of basal sauropod dinosaurs hitherto only known from the Middle Jurassic (Bathonian) to the Lower Cretaceous (Valanginian). A new find of a shed tooth crown from the Lower Jurassic (Pliensbachian), Halse Formation of Bornholm ...
Jesper Milàn, Octávio Mateus
doaj   +1 more source

Tip dating supports novel resolutions of controversial relationships among early mammals [PDF]

open access: yes, 2020
The estimation of the timing of major divergences in early mammal evolution is challenging due to conflicting interpretations of key fossil taxa. One contentious group is Haramiyida, the earliest members of which are from the Late Triassic.
Beck, RMD, King, B
core   +2 more sources

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