Results 61 to 70 of about 1,482,759 (284)
GeosciencesDetrital zircon (DZ) ages of Cretaceous sandstones in the United States contain critical spatial and temporal information on their sedimentary provenance and on the reorganization of drainage patterns.
Haibo Zou +3 more
doaj +1 more source
Botanical Gazette, 1919 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +3 more sources
The anatomy and systematic position of the theropod dinosaur Chilantaisaurus tashuikouensis Hu, 1964 from the Early Cretaceous of Alanshan, People's Republic of China [PDF]
There is little consensus on the systematic position of the colossal theropod dinosaur Chilantaisaurus tashuikouensis from the Cretaceous (Aptian–?Albian or Upper Cretaceous) Ulansuhai Formation of Inner Mongolia, which has been recovered as a derived ...
Benson, R. B. J., Xing, Xu
core +1 more source
The Anatomical Record, EarlyView.Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson +2 more
wiley +1 more source
Regional magnetostratigraphic section of the Upper Cretaceous strata in the north of Western Siberia [PDF]
Нефтегазовая геология: Теория и практика, 2023 The results of magnetostratigraphic studies of the Upper Cretaceous in the north of Western Siberia, studied by nine boreholes in the southeast of the Yamalo-Nenets Autonomous Okrug (Pur-Taz Interfluve), are presented.
Gnibidenko Z.N., Marinov V.A.
doaj
The Anatomical Record, EarlyView.Abstract The Itaboraí Basin, Southeastern Brazil, preserved one of the most diverse mammalian faunas from the Paleogene, with Metatheria comprising more than 60% of its diversity. Among identified metatherian clades, it has been argued that Paucituberculata is represented by “Riolestes capricornicus”.
Leonardo M. Carneiro +4 more
wiley +1 more source
Characterization of a complex near-surface structure using well logging and passive seismic measurements [PDF]
Solid Earth, 2016 We combine geophysical well logging and passive seismic measurements to characterize the near-surface geology of an area located in Hontomin, Burgos (Spain). This area has some near-surface challenges for a geophysical study.
B. Benjumea +3 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva +2 more
wiley +1 more source
Egyptian Journal of Petroleum, 2018 This paper aims to evaluate the hydrocarbon potentiality and thermal maturity of the Cretaceous source rocks in Al Baraka oil field in KomOmbo basin, south Egypt.
Mohamed M. El Nady +4 more
doaj +1 more source
Letter. Late cretaceous seasonal ocean variability from the arctic
, 2009 The modern Arctic Ocean is regarded as barometer of global change and amplifier of global warming1 and therefore records of past Arctic change are of a premium for palaeoclimate reconstruction.
Kemp, Alan E.S. +6 more
core +1 more source