Results 41 to 50 of about 10,452 (224)

Findings of marine reptilesin the Upper Cretaceous of Middle Urals

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2016
The first description of the complex of bones from one individual plesiosaur marine reptile from the Upper Cretaceous deposits of the Central Urals is done; the reptiles remains of different species encountered in these sediments so far.
V. M. Efimov, A. I. Malikov
doaj   +2 more sources

Evidence for vertical motility in Campanian deep-water agglutinated foraminifera: The Furlo volcanic ash layer [PDF]

open access: yes, 2004
Evidence for vertical motility has been observed among six Campanian deep-water agglutinated foraminiferal species from the Furlo Bentonite in the Umbria-Marche Basin ...
Kaminski, M.A.., Galeotti, S.
core  

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

open access: yesThe 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

Timing and implications of Late Cretaceous tectonic and sedimentary events in Jamaica

open access: yesGeologica Acta, 2006
The Cretaceous succession in Jamaica can be divided into sedimentary packages bounded by major unconformities (synthems). On the base of biostratigraphy and ages derived from strontium isotope ratios, these unconformities have been dated as Early ...
S. F. MITCHELL
doaj   +1 more source

MARINE FISHES (CHONDRICHTHYES, HOLOCEPHALI, ACTINOPTERYGII) FROM THE UPPER CRETACEOUS (CAMPANIAN) RYBUSHKA FORMATION NEAR BELOE OZERO, SARATOV OBLAST, RUSSIA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2022
A diverse fish paleofauna occurs in the upper Campanian portion of the Rybushka Formation exposed near Saratov city in the Saratov Oblast, Russia. Twenty taxa have been identified, including two holocephalans (Ischyodus bifurcatus and Amylodon karamysh),
Jun Ebersole   +4 more
doaj   +1 more source

Sharks of the order Carcharhiniformes from the British Coniacian, Santonian and Campanian (Upper Cretaceous). [PDF]

open access: yes, 2008
Bulk sampling of phosphate-rich horizons within the British Coniacian to Campanian (Upper Cretaceous) yielded very large samples of shark and ray teeth.
DAVID J. WARD   +3 more
core   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

open access: yesThe Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe   +3 more
wiley   +1 more source

Isotopic evidence for open system processes within the Campanian Ignimbrite (Campi Flegrei–Italy) magma chamber

open access: yes, 2009
New Sr and Nd isotope data for whole rocks, glasses and minerals are combined to reconstruct the nature and origin of mixing end-members of the 200 km3 trachytic to phonolitic Campanian Ignimbrite (Campi Flegrei, Italy) magmatic system.
Heumann, I.   +4 more
core   +2 more sources

Foraminifera from the Campanian–Maastrichtian of the Miriri Sub-Basin, Paraíba Basin, Brazil: implications for biostratigraphy and paleoenvironmental reconstruction [PDF]

open access: yesAnais da Academia Brasileira de Ciências
This study investigates the core RT-01-PB from the Miriri Sub-Basin, Paraíba Basin, analyzing planktic and benthic foraminifera from the upper Campanian to lower Maastrichtian. The strata belong to the Itamaracá and Gramame formations. Lithostratigraphic,
HOLES P. DE SANTANA   +4 more
doaj   +1 more source

A new tyrannosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Menefee Formation of New Mexico [PDF]

open access: yesPeerJ, 2018
The giant tyrannosaurids were the apex predators of western North America and Asia during the close of the Cretaceous Period. Although many tyrannosaurid species are known from numerous skeletons representing multiple growth stages, the early evolution ...
Andrew T. McDonald   +2 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy