Results 51 to 60 of about 63,232 (285)

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

The Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano, Aline M. Ghilardi, Jonatan Kaluza, Agustín G. Martinelli   +3 more
wiley   +1 more source

Discovery of Late Triassic bivalves from Jurassic deep-water deposits in Riganpeicuo area, Tibet and their geological significance

Scientific Reports, 2022
The Jurassic sequences in the South Qiangtang Basin of Tibet are essential for understanding the paleogeography and tectonic evolution of this basin and the Bangong-Nujiang Meso-Tethys Ocean (BNMO).
Hongji Xiao, Shenglong Luo, Jinhan Gao, Genhou Wang   +3 more
doaj   +1 more source

Dinosaur footprints from the Duntulm Formation (Bathonian, Jurassic) of the Isle of Skye [PDF]

, 2004
The first in situ dinosaur tracks from Scotland were discovered at the top of the Duntulm Formation (Bathonian, Jurassic) near to Staffin in northeastern Skye.
ANDERSON, BOCK, CLARK, CLARK, HUDSON, LOCKLEY, LOCKLEY, LOCKLEY, LOCKLEY, ROMANO   +9 more
core   +1 more source

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

The Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen, Ivo Jacobs, Kristina Kverková, Lona Lalić, Alexandra Polonyiová, Patrik Stehlík, Stephan A. Reber, Mathias Osvath   +7 more
wiley   +1 more source

JURASSIC PALEONTOLOGICAL HERITAGE OF MURCIA (BETIC CORDILLERA, SOUTH-EASTERN SPAIN)

Rivista Italiana di Paleontologia e Stratigrafia, 2004
Jurassic rocks of the External and Internal Zones of the Betic Cordillera are widespread in the province of Murcia. Four areas are considered of special interest for stratigraphical and paleontological analysis: a) Sierra Quípar and b) Sierras Lúgar ...
GREGORIO ROMERO, JOSÉ SANDOVAL, JESÚS CARACUEL, MIGUEL ÁNGEL MANCHEÑO   +3 more
doaj   +1 more source

Features and favorable exploration direction of normal faults in Jurassic strata in northern central Sichuan Basin, China

Journal of Natural Gas Geoscience, 2023
Studies focusing on the fault system in the Jurassic strata of the Sichuan Basin have been limited, restricting the understanding of the hydrocarbon accumulation mode of the Shaximiao Formation and the expansion of exploration. Through interpretation and
Nan Su, Zhuxin Chen, Wei Yang, Lining Wang, Wenzheng Li, Chunlong Yang, Rong Li, Lu Zhang, Xueying Ma, Hao Zhang   +9 more
doaj   +1 more source

Stable isotope (δ18O and δ13C) sclerochronology of Callovian (Middle Jurassic) bivalves (Gryphaea (Bilobissa) dilobotes) and belemnites (Cylindroteuthis puzosiana) from the Peterborough Member of the Oxford Clay Formation (Cambridgeshire, England): Evidence of palaeoclimate, water depth and belemnite behaviour [PDF]

, 2014
Incremental δ18O and δ13C signals were obtained from three well-preserved specimens of Cylindroteuthis puzosiana and from three well-preserved specimens of Gryphaea (Bilobissa) dilobotes from the Peterborough Member of the Oxford Clay Formation ...
A.L.A. Johnson, Alberti, Anderson, Anderson, Arkhipkin, Arkhipkin, Arthur, B.R. Schöne, Barbin, Barbin, Belin, Bodin, Bradshaw, Brigaud, C. Mettam, Dera, Dickson, Doyle, Doyle, Duff, Dunca, Dutton, E.V. Nunn, Frakes, Frakes, Heilmayer, Hewitt, Hudson, Hudson, Hudson, Hudson, Johnson, Jones, Kenig, Kenig, Lartaud, Li, Li, Lécuyer, Macquaker, Martill, McArthur, Morgans, Morgans, Mutterlose, Mutterlose, NOAA, Norry, Nunn, Nunn, O'Neill, Page, Pierre, Poulsen, Price, Price, Price, Price, Price, Price, Price, Price, Price, Rexfort, Rosales, Rosales, Scheurle, Schöne, Schöne, Sellwood, Steuber, Thiery, Tomašovўch, Voigt, Westermann, Wierzbowski, Wierzbowski, Wierzbowski, Wierzbowski, Wilby, Ziegler, Žák   +81 more
core   +3 more sources

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

The Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

A bajocian (Middle jurassic) marine gastropod assemblage from the badamu formation, Central Iran [PDF]

, 2016
Nine species of gastropods are reported from the Bajocian (Middle Jurassic) part of the Badamu Formation of Central Iran. This is the first report of a gastropod assemblage of this age from the shelves of the Kimmerian Continent.
Binazadeh, Tayyeb, Ferrari, Silvia Mariel, Kaim, Andrzej   +2 more
core   +1 more source

Middle Jurassic Cyclostome Bryozoans from the Polish Jura [PDF]

Acta Palaeontologica Polonica, 2009
New collections of bryozoans from the Middle Jurassic (Late Bajocian and Bathonian) of Poland add significantly to our knowledge of the diversity and biogeography of the Cyclostomata at a time when they were the dominant bryozoan order in the fossil record. A total of 16 species and one form-genus (“Berenicea”) are present.
Zatoń, Michał, Taylor, Paul D.
openaire   +4 more sources