Results 41 to 50 of about 1,482,759 (284)

Shark and ray teeth from the Hauterivian (Lower Cretaceous) of north-east England [PDF]

, 1999
Sampling of hiatal horizons within the Hauterivian part of the Speeton Clay Formation of north-east England has produced teeth of several species of sharks and rays, four of which are previously unnamed.
Veltkamp, K.J., Underwood, Charlie J., Mitchell, S.F.   +2 more
core   +6 more sources

Microfacies and Depositional Conditions of Jurassic to Eocene Carbonates: Implication on Ionian Basin Evolution

Geosciences, 2021
In order to decipher the paleo-depositional environments, during the Late Jurassic to Early Eocene syn-rift stage, at the margins of the Ionian basin, two different areas with exposed long sequences have been selected, Kastos Island (external margin) and
Nicolina Bourli, George Iliopoulos, Penelope Papadopoulou, Avraam Zelilidis   +3 more
doaj   +1 more source

New ophthalmosaurid ichthyosaurs from the European lower cretaceous demonstrate extensive ichthyosaur survival across the Jurassic–Cretaceous boundary [PDF]

, 2012
Background Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one ...
Ralf Kosma (189585), Tainsh, J., Jeff Liston, Naish Darren, Kosma Ralf, Michael W Maisch, Naish, D., Kosma, R, Darren Naish (115424), Ulrich Joger (189592), Fenton, B., Valentin Fischer (189579), Maisch Michael W., Pérez, Judith Pardo, Krüger Fritz J., Naish, Darren, Fritz J Krüger, Judith Pardo Pérez, Maisch, Michael W, Kosma, Ralf, Fritz J. Krüger, Pérez, J.P., Michael W. Maisch¤a, Liston, Jeff, Ulrich Joger, Valentin Fischer, Krüger, Fritz, Tainsh Jessica, Michael W. Maisch (189582), Robert M. Appleby, Pardo Pérez, Judith, Liston, J, Tainsh, J, Krüger , Fritz J, Appleby, Robert, Michael W. Maisch, Joger, U, Fischer, Valentin, Liston Jeff, Jeff Liston (189589), Robert M Appleby, Fischer Valentin, Robert M. Appleby (189609), Liston, J., Krüger, F.J., Kosma, R., Joger Ulrich, Tainsh, Jessica, Joger, Ulrich, Jessica Tainsh, Maisch, M.W., Maisch, Michael, Appleby, R.M., Krüger, Fritz J, Darren Naish, Fritz J. Krüger (189597), Pérez Judith Pardo, Judith Pardo Pérez (189600), Appleby Robert M., Fischer, V, Ralf Kosma, Jessica Tainsh (189605), Fischer, V., Pardo Pérez, J, Appleby, Robert M, Joger, U.   +65 more
core   +1 more source

New titanosauriform (Dinosauria: Sauropoda) specimens from the Upper Cretaceous Daijiaping Formation of southern China [PDF]

PeerJ, 2019
Titanosauriform sauropod dinosaurs were once considered rare in the Upper Cretaceous of Asia, but a number of titanosauriforms from this stratigraphic interval have been discovered in China in recent years.
Fenglu Han, Xing Xu, Corwin Sullivan, Leqing Huang, Yu Guo, Rui Wu   +5 more
doaj   +2 more sources

New understanding and exploration direction of hydrocarbon accumulation in Termit Basin, Niger

Petroleum Exploration and Development, 2023
Based on the seismic and drilling data, casting thin sections, geochemical analysis of oil and rock samples, and hydrocarbon generation history simulation, the hydrocarbon accumulation characteristics and exploration direction of Termit superimposed ...
Shengqiang YUAN, Lirong DOU, Dingsheng CHENG, Fengjun MAO, Chunfu PAN, Fengyun ZHENG, Hong JIANG, Wenzhu PANG, Zaohong LI   +8 more
doaj   +1 more source

Magnetobiostratigraphic synthesis of Leg 123: sites 765 and 766 (Argo Abyssal Plain and Lower Exmouth Plateau) [PDF]

, 1992
During ODP Leg 123, Sites 765 and 766 were drilled to examine the tectonic evolution, sedimentary history, and paleoceanography of the Argo Abyssal Plain and lower Exmouth Plateau.
Moran, M.J., Ogg, J. G., Bown, P.R., Haig, D.W., M.J. Moran, Baumgartner, P. O., Moran, M. J., J. Mutterlose, P.O. Baumgartner, J.G. Ogg, Bown, P. R., M.A. Kaminski, Kaminski, M.A., P.R. Bown, D.W. Haig, Haig, D. W., Kaminski, Michael A., Baumgartner, P.O., Mutterlose, J., McMinn, A., Ogg, J.G., A. McMinn   +21 more
core   +1 more source

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

The Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada, Takanobu Tsuihiji, Hiroki Ishikawa, Noriyuki Wakimizu, Soichiro Kawabe, Kodai Sakane   +5 more
wiley   +1 more source

Protolith age of the Altar and Carnero complexes and latest Cretaceous–Miocene deformation in the Caborca–Altar region of northwestern Sonora, Mexico

Revista Mexicana de Ciencias Geológicas, 2019
In the Caborca–Altar area of northwest Sonora, variably deformed and metamorphosed sedimentary and volcanic rocks crop out in a northwest-southeast–trending belt (El Batamote belt) at least 70 km long.
Carl E. Jacobson, César Jacques-Ayala, Andrew P. Barth, Juan Carlos García y Barragán, Jane N. Pedrick, Joseph L. Wooden   +5 more
doaj   +1 more source

Scientific Drilling of the Terrestrial Cretaceous Songliao Basin [PDF]

Scientific Drilling, 2008
Investigations of critical climate changes during the Cretaceous have the potential to enhance our understanding of modern global warming because the extreme variances are the best-known and most recent example of a greenhouse Earth (Bice et al., 2006 ...
Terrestrial Scientific Drilling of the Cretaceous Songliao Basin Science Team, Cheng-Shan Wang, Yongjian Huang   +2 more
doaj   +1 more source

Geochemical and stable isotope patterns of calcite cementation in the Upper Cretaceous Chalk, Uk: Direct evidence from calcite-filled vugs in brachiopods [PDF]

Hu, X-F, Jeans, C.V. and Dickson, J.A.D. 2012. Geochemical and stable isotope patterns of calcite cementation in the Upper Cretaceous Chalk, UK: Direct evidence from calcite-filled vugs in brachiopods. Acta GeologicaPolonica, 62 (2), 143-172.
Dickson, Tony, Jeans, Christopher, Hu, Xiufang   +2 more
core   +1 more source