Results 41 to 50 of about 10,069 (268)

Forecasting the quality of fluid seals and reservoirs for the Upper Jurassic deposits in the southeastern part of the West Siberian oil and gas province

Актуальные проблемы нефти и газа
Background. Upper Jurassic natural reservoirs are the main deposits containing 65–75% of recoverable hydrocarbon reserves in the Tomsk Region. They are overlapped by the fluid seals of the Bazhenov–Georgievsk complex, the quality of which deteriorates
R.O. Kuznetsov, I.V. Zhilina
doaj   +1 more source

STRATIGRAFIA DEL GIURASSICO DEI DINTORNI DI FOZA (ALTOPIANO DI ASIAGO)

Rivista Italiana di Paleontologia e Stratigrafia, 2023
The Middle and Upper Jurassic sequence near Foza (Asiago plateau; Venetian Alps) is characterized by important hiatuses. The relevant deposits are furthermore often found as sedimentary dikes, filling up fractures in the underlying carbonatic platform ...
CHIARA BENIGNI, POMPEO CASATI, CAMILLA PIRINI RADRIZZANI   +2 more
doaj  

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

The Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

(Table 1) Spores and pollen in upper Jurassic and lower Cretaceous sediments at DSDP Hole 71-511

, 1983
(Table 1) Spores and pollen in upper Jurassic and lower Cretaceous sediments at DSDP Hole 71 ...
Kotova, Ida Z, Ida Z Kotova (8003660)
core   +1 more source

A New Tritylodontid from the Upper Jurassic of Xinjiang, China [PDF]

Acta Palaeontologica Polonica, 2009
A new genus and species of Tritylodontidae, Yuanotherium minor, is described and compared with other known tritylodontids. The new taxon is represented by a partially preserved upper jaw with three postcanines, collected from the upper part of the Shishugou Formation (Oxfordian, Late Jurassic) in the Wucaiwan area of the Junggar Basin, northwestern ...
Hu, Yaoming, Meng, Jin, Clark, James M.
openaire   +2 more sources

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Tectonic Switch From Triassic Contraction to Jurassic-Cretaceous Extension in the Western Tarim Basin, Northwest China: New Insights Into the Evolution of the Paleo-Tethyan Orogenic Belt

Frontiers in Earth Science, 2021
We use stratigraphic, sedimentological, and borehole data and seismic profiles from the western Tarim Basin to document its Mesozoic tectonic evolution.
Hongxiang Wu, Hongxiang Wu, Xiaogan Cheng, Xiaogan Cheng, Hanlin Chen, Hanlin Chen, Cai Chen, Yildirim Dilek, Yildirim Dilek, Jun Shi, Changmin Zeng, Chunyang Li, Chunyang Li, Wei Zhang, Wei Zhang, Yuqing Zhang, Yuqing Zhang, Xiubin Lin, Xiubin Lin, Fengqi Zhang, Fengqi Zhang   +20 more
doaj   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato, Luke E. Nelson, Joshua A. Doyon, Donald B. Brinkman, Alison M. Murray   +4 more
wiley   +1 more source

Design on Waterproof Safety Coal Pillar at Outcrop Area of Thick Coal Seam Under he Large Thick Jurassic Red Stratum

Meikuang Anquan, 2020
To study the waterproof coal pillar design for mining in the outcrop area of thick coal seam in Shanxi Formation under the large Jurassic red stratum in the seventh mining area planned and designed by Dongtan Coal Mine, the systematic analysis is ...
XIE Huadong
doaj   +1 more source