Results 51 to 60 of about 9,098 (223)

Ontogeny and taxonomy of the hadrosaur (Dinosauria, Ornithopoda) remains from Basturs Poble bonebed (late early Maastrichtian, Tremp Syncline, Spain). [PDF]

PLoS ONE, 2018
The lower Maastrichtian site of Basturs Poble (southern Pyrenees, Spain) is the first hadrosaur bonebed reported from Europe. It is an accumulation of disarticulated lambeosaurine skeletal elements, possibly belonging to Pararhabdodon isonensis.
Víctor Fondevilla, Fabio Marco Dalla Vecchia, Rodrigo Gaete, Àngel Galobart, Blanca Moncunill-Solé, Meike Köhler   +5 more
doaj   +1 more source

A Skate in the Lowermost Maastrichtian of Southern Sweden [PDF]

Palaeontology, 2001
A new skate, Walteraja exigua gen. et sp. nov., is described from the lowermost Maastrichtian Belemnella lanceolata Zone of Balsvik quarry, Kristianstad Basin, southern Sweden. It is the earliest known skate with a largely modern tooth morphology and the only known pre‐Cenozoic rajoid displaying a very marked gynandric heterodonty, comparable to that ...
Mikael Siverson, Henri Cappetta
openaire   +1 more source

First evidence of a mandibular crest in Brasileodactylus Kellner, 1984 (Pterosauria, Pteranodontoidea, Anhangueridae), with comments on pterosaur headcrests

The Anatomical Record, EarlyView.
Abstract Brasileodactylus araripensis Kellner, 1984, is a toothed pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Brazil. Traditionally regarded as crestless, the species has been central to debates on anhanguerid taxonomy, as most members of the clade possess well‐developed sagittal cranial or dentary crests.
Anderson da Silva Nascimento, Rubi Vargas Pêgas, Alessandra Silveira Machado, Ricardo Tadeu Lopes, Fabiana Rodrigues Costa   +4 more
wiley   +1 more source

(Table 1) Campanian-Maastrichtian bioevents of ODP Hole 122-762C

, 2012
(Table 1) Campanian-Maastrichtian bioevents of ODP Hole 122 ...
Huret, Emilia, Emilia Huret (6977366), Gardin, Silvia, Minoletti, Fabrice, Rikke Harlou (6977360), Silvia Gardin (6977363), Bruno Galbrun (6963668), Galbrun, Bruno, Fabrice Minoletti (7999253), Harlou, Rikke, Nicolas Thibault (7883780), Thibault, Nicolas, Husson, Dorothée, Dorothée Husson (6962108)   +13 more
core   +1 more source

Seismic Sequence Stratigraphy Applied to Reservoir Recognition and Evolution on Marine Carbonatic Ramp—Macaé Group (Albian to Cenomanian) of Campos Basin

Geological Journal, EarlyView.
A classic oil producing interval of the Campos Basin—Macaé Group is revisited through seismic stratigraphic analysis, providing a stratigraphic framework, characteristic depositional and relative time positioning for several complex structural settings.
Renata Alvarenga, Juliano Kuchle, Francyne Amarante, Garibaldi Armelenti, Claiton Marlon dos Santos Scherer, Luiz Fernando De Ros, Bruno de Souza Silva, Igor Marzano, Márcia Karam, Candy Shirley Rosa Contreras, João Claudio Conceição, José Luis Drummond Alves, Luiz Landau   +12 more
wiley   +1 more source

Cranial growth and variation in edmontosaurs (Dinosauria: Hadrosauridae): implications for latest Cretaceous megaherbivore diversity in North America.

PLoS ONE, 2011
The well-sampled Late Cretaceous fossil record of North America remains the only high-resolution dataset for evaluating patterns of dinosaur diversity leading up to the terminal Cretaceous extinction event.
Nicolás E Campione, David C Evans
doaj   +1 more source

A large Megaraptoridae (Theropoda: Coelurosauria) from Upper Cretaceous (Maastrichtian) of Patagonia, Argentina

Scientific Reports, 2022
Megaraptora is a theropod clade known from former Gondwana landmasses and Asia. Most members of the clade are known from the Early to Late Cretaceous (Barremian–Santonian), with Maastrichtian megaraptorans known only from isolated and poorly informative ...
Alexis M. Aranciaga Rolando, Matias J. Motta, Federico L. Agnolín, Makoto Manabe, Takanobu Tsuihiji, Fernando E. Novas   +5 more
doaj   +1 more source

Characteristics of Gravity Flow Deposits in the Benin Basin (Benin) and Implications for Oil and Gas Exploration

Geological Journal, EarlyView.
This study reveals that the underexplored Benin Basin features a narrow shelf and steep slope, which promoted the development of multi‐phase, stacked channel‐lobe complexes. These gravity flow deposits, further enhanced by bottom current reworking, reveal a significant undiscovered Upper Cretaceous stratigraphic play with considerable petroleum ...
Liu Zuodong, Wen Zhixin, Song Chenpeng, Wang Xueling, Shen Yiping   +4 more
wiley   +1 more source

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

Geological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai, Akira Yoshiasa, Ginga Kitahara, Makoto Tokuda, Satoko Ishimaru, Toshihiro Moriga   +5 more
wiley   +1 more source

Late Cretaceous (late Campanian–Maastrichtian) sea-surface temperature record of the Boreal Chalk Sea [PDF]

Climate of the Past, 2016
The last 8 Myr of the Cretaceous greenhouse interval were characterized by a progressive global cooling with superimposed cool/warm fluctuations. The mechanisms responsible for these climatic fluctuations remain a source of debate that can only be ...
N. Thibault, R. Harlou, N. H. Schovsbo, L. Stemmerik, F. Surlyk   +4 more
doaj   +1 more source