Results 31 to 40 of about 1,776,549 (292)

A new pterosaur (Pterodactyloidea: Azhdarchidae) from the Upper Cretaceous of Morocco [PDF]

, 2010
The Kem Kem beds in South Eastern Morocco contain a rich early Upper (or possibly late Lower) Cretaceous vertebrate assemblage. Fragmentary remains, predominantly teeth and jaw tips, represent several kinds of pterosaur although only one species, the ...
David M Unwin, Baidder, Lahssen, David M Martill, Ibrahim, Nizar, Lahssen Baidder, D. M. Martill (4169125), Ibrahim Nizar, Unwin David M., S. Zouhri (7618280), Baidder Lahssen, Zouhri Samir, N. Ibrahim (7618271), L. Baidder (7618277), Martill, David M., Nizar Ibrahim, Samir Zouhri, Zhouri, Samir, Unwin, David M., Martill David M., David M. Unwin (7618274)   +19 more
core   +1 more source

The origin and early evolution of metatherian mammals: the Cretaceous record

ZooKeys, 2014
Metatherians, which comprise marsupials and their closest fossil relatives, were one of the most dominant clades of mammals during the Cretaceous and are the most diverse clade of living mammals after Placentalia.
Thomas E. Williamson, Stephen L. Brusatte, Gregory P. Wilson   +2 more
doaj   +1 more source

Divergence rates of subviral pathogens of angiosperms abruptly decreased at the Cretaceous-Paleogene boundary [PDF]

Rethinking Ecology, 2019
Biogeographic distribution of infected plants and the continental drift theory allow a tentative time calibration of the phylogenetic tree of Pospiviroidae.
Piotr Bajdek
doaj   +3 more sources

The evolution of large-bodied theropod dinosaurs during the Mesozoic in Asia [PDF]

, 2010
The fossil record of large-bodied, apex carnivorous theropod dinosaurs in Eastern Asia is now among the best understood in the world, thanks to new discoveries and reinterpretations of long-neglected fossils.
Benson, R. B. J., Brusatte, S. L., S. L. Brusatte, Brusatte, S. L.; id_orcid, Xu, X., X. Xu, R. B. J. Benson   +6 more
core   +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, 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.   +64 more
core   +1 more source

A new dromaeosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia, China [PDF]

, 2010
We describe a new dromaeosaurid theropod from the Upper Cretaceous Wulansuhai Formation of Bayan Mandahu, Inner Mongolia. The new taxon, Linheraptor exquisitus gen. et sp.
Tan, Q., Sullivan, C., Xu, X., Sullivan, Corwin, Norell, Mark A., Tan, Lin, Clark, JM, Xiao, D., Choiniere, Jonah N., Pittman, M.D., Tan, L, Pittman, Michael, Tan, Qingwei, Choiniere, J.N., Sullivan, C, Tan, Q, Hone, D.W.E., Hone, David W. E., Tan, L., Hone, DWE, Norell, MA, Li, Z., Li, Zhiquan, Xu, X, Xiao, D, Pittman, M, Clark, J.M., Choiniere, JN, Li, Z, Clark, James M., Xu, Xing, Xiao, Dong, Norrell, M.A.   +32 more
core   +1 more source

Mesozoic and Cenozoic diktyogenese in the Lower Yangtze region

Shiyou shiyan dizhi, 2020
Three stages of metamorphic tectonic movements took place in the Lower Yangtze region due to the joint action of the Tethys and the Pacific plates from the Middle/Late Triassic to the Early/Middle Jurassic, the Late Jurassic to the Early Cretaceous, and ...
Daogui DING, Fengli LI
doaj   +1 more source

Neotethyan Ankara Melange, central Turkey: Formation by accretion of seamounts and supra-subduction zone ophiolites in an oceanic fore-arc setting

Journal of Asian Earth Sciences: X, 2023
The Neotethyan Ankara Melange is a global reference for oceanic accretionary processes preserved in a collisional orogen. Here we show, based on eight representative outcrops around Ankara, that the melange encompasses stratigraphically coherent volcanic-
Alastair H.F. Robertson, Osman Parlak, Kemal Taslı, Paulian Dumitrica, Timur Ustaömer   +4 more
doaj   +1 more source

Island life in the Cretaceous - faunal composition, biogeography, evolution, and extinction of land-living vertebrates on the Late Cretaceous European archipelago

ZooKeys, 2015
The Late Cretaceous was a time of tremendous global change, as the final stages of the Age of Dinosaurs were shaped by climate and sea level fluctuations and witness to marked paleogeographic and faunal changes, before the end-Cretaceous bolide impact ...
Zoltan Csiki-Sava, Eric Buffetaut, Attila Ősi, Xabier Pereda-Suberbiola, Stephen L. Brusatte   +4 more
doaj   +1 more source

Early Cretaceous biogeographic and oceanographic synthesis of Leg 123 (off Northwestern Australia) [PDF]

, 1992
Biogeographic observations made by Leg 123 shipboard paleontologists for Lower Cretaceous nannofossils, foraminifers, radiolarians, belemnites, and inoceramids are combined in this chapter to evaluate the paleoceanographic history of the northwestern ...
Bown, P., D. Haig, Haig, D., J. Mutterlose, P.O. Baumgartner, Marcoux, J., M.A. Kaminski, P. Bown, Kaminski, M.A., J. Marcoux, Baumgartner, P.O., Mutterlose, J., McMinn, A., A. McMinn   +13 more
core   +1 more source