Results 171 to 180 of about 12,589 (253)

Provenance and Tectonic Setting of the Lower Cretaceous Huanhe Formation in the Northwestern Ordos Basin and Its Implications for Uranium Mineralization. [PDF]

ACS Omega
Sun D, Li H, Xia F, Nie F, Huang G, Zhang Z, Meng F, Pan J, Hu Y.   +8 more
europepmc   +1 more source

The first possible choristoderan trackway from the Lower Cretaceous Daegu Formation of South Korea and its implications on choristoderan locomotion. [PDF]

Sci Rep, 2020
Lee YN, Kong DY, Jung SH.
europepmc   +1 more source

Widespread complex enameloid microstructure in teeth and rostral denticles of Cretaceous sclerorhynchoid skates (Rajiformes: †Sclerorhynchoidei)

Journal of Anatomy, EarlyView.
This article demonstrates that the teeth and rostral denticles of an extinct clade of sawfish‐like skates display an extremely derived enameloid microstructure, similar to what is known among sharks. The presence of tooth‐like enameloid microstructure in dermal denticles opens new perspectives about the origins and development of chondrichthyan ...
Endy Chateauneuf‐Gautier, Guillaume Guinot   +1 more
wiley   +1 more source

A revision of Laeliichthys ancestralis Santos, 1985 (Teleostei: Osteoglossomorpha) from the Lower Cretaceous of Brazil: Phylogenetic relationships and biogeographical implications. [PDF]

PLoS One, 2020
Brito PM, Figueiredo FJ, Leal MEC.
europepmc   +1 more source

Heterodonty in the teeth of the turiasaurian sauropod from Angeac‐Charente (Early Cretaceous, southwestern France): Comparison of anatomical and geometric morphometric approaches

Journal of Anatomy, EarlyView.
Turiasaurian teeth from Angeac‐Charente exhibit five dental morphotypes and reveal clear heterodonty and anteroposterior size gradient. Qualitative comparative anatomy quickly and efficiently identifies morphotypes, while 3D geometric morphometrics combined with machine learning refine ambiguous cases, demonstrating that qualitative and quantitative ...
Clémence Le Gouellec, Ronan Allain, Jean Goedert, Romain Pintore, Jackson Carter, Rafael Royo‐Torres, Dominique Augier, Raphaël Cornette   +7 more
wiley   +1 more source

Lower Cretaceous Marine Pelecypods of Japan Part Ⅰ [PDF]

Memoirs of the Faculty of Science, Kyūsyū University. Series D, Geology, 1965
openaire   +3 more sources

Evolution, Routing and Reservoir Characteristics of Submarine Channels in a Structurally Deforming Slope Setting: Deep‐Water Joint Development Zone of Nigeria and São Tomé and Príncipe

Journal of Petroleum Geology, EarlyView.
ABSTRACT Deep‐water slope channels and associated facies are a major part of clastic sediment dispersal system extending from the shelf‐edge to the abyssal plain. The toe‐thrust area of the deep‐water Niger Delta enables the analysis of these channels and their interaction with evolving fault‐controlled sea‐floor topography to be determined ...
Stanley Ang, Mike Mayall, Lidia Lonergan
wiley   +1 more source

A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China. [PDF]

BMC Evol Biol, 2020
Yang Y, Wang Y, Ferguson DK.
europepmc   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

A new insect trackway from the Upper Jurassic-Lower Cretaceous eolian sandstones of São Paulo State, Brazil: implications for reconstructing desert paleoecology. [PDF]

PeerJ, 2020
Peixoto BCPEM, Mángano MG, Minter NJ, Dos Reis Fernandes LB, Fernandes MA.   +4 more
europepmc   +1 more source