Results 31 to 40 of about 1,888 (189)
, 2016 The Campanian working party in Brussels did not wish to make a conclusive recommendation but there was a strong feeling that the base of the stage should be fixed at the extinction-level of the crinoid Marsupites. Other criteria discussed included ammonites, belemnites, foraminifera, calcareous nannofossils and magnetostratigraphy.
Hancock, J +6 more
openaire +2 more sources
Magnetostratigraphic and micropaleontological data from the Campanian–Mastrichtian section near Levashi Village (Dagestan) [PDF]
Известия Саратовского университета. Новая серия: Серия Науки о ЗемлеPreserved oriented samples from the reference Campanian–Maastrichtian section near Levashi village (Dagestan), sampled in 1990 by the staff of the SSU Research Institute of Geology, were studied in terms of rock magnetism and paleomagnetism ...
Tonkoshkurov, Ilya M. +4 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe +4 more
wiley +1 more source
Findings of marine reptilesin the Upper Cretaceous of Middle Urals
Известия 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
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 +4 more
wiley +1 more source
Timing and implications of Late Cretaceous tectonic and sedimentary events in Jamaica
Geologica 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
Rivista 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
The Anatomical Record, EarlyView.Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro +7 more
wiley +1 more source
Foraminifera from the Campanian–Maastrichtian of the Miriri Sub-Basin, Paraíba Basin, Brazil: implications for biostratigraphy and paleoenvironmental reconstruction [PDF]
Anais da Academia Brasileira de CiênciasThis 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]
PeerJ, 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