Results 111 to 120 of about 7,296 (255)

Characterization of the Weissert oceanic anoxic event in lower Cretaceous limestones of the Guaniguanico terrain, Sierra de los Órganos, Western Cuba

Frontiers in Earth Science
The breakup of Pangea started in the Late Triassic when the new Tethyan domain developed into diverse sub-basins which began as shallow-water passive margins progressing into deeper foreland basins. Our study presents a high-resolution chemostratigraphic
Johanset Orihuela, Mihaela C. Melinte Dobrinescu, Florentin J.-M. R. Maurrasse   +2 more
doaj   +1 more source

Upper Jurassic-Lower Cretaceous basinal strata along the Cordilleran Margin: Implications for the accretionary history of the Alexander-Wrangellia-Peninsular Terrane [PDF]

, 1992
Upper Jurassic and Lower Cretaceous basinal strata are preserved in a discontinuous belt along the inboard margin of the Alexander-Wrangellia-Peninsular terrane (AWP) in Alaska and western Canada, on the outboard margin of terranes in the Canadian ...
Gehrels, George E., McClelland, William C., Saleeby, Jason B.   +2 more
core   +1 more source

On the trail of a major trans-Tethyan discontinuity

Carnets de Géologie, 2007
At the base of the Valanginian a major discontinuity associated with one of the major transgressions of the Cretaceous is nominated as a candidate for the boundary between the Cretaceous and Jurassic systems.
Granier Bruno
doaj  

Sedimentology and chemostratigraphy of a Valanginian carbonate succession from the Baja Guajira Basin, northern Colombia

Brazilian Journal of Geology
: The Kesima Member of the Palanz Formation constitutes the first record of Cretaceous marine sedimentation along the Baja Guajira Basin, northern Colombia. Sedimentologic and petrographic analyses suggest a deposition along a coral reef dominated rimmed
Juan Carlos Silva-Tamayo, Catalina Ramirez, Mario Lara, Alcides Nobrega Sial, David Trujillo, Edward Salazar   +5 more
doaj   +1 more source

New record of Pseudocidaris sp. (Echinoidea:Hemicidaridae) of lower Cretaceous (Valanginian-Hauterivian) from Zapatoca, (Santander Colombia).

Ingeniería Investigación y Desarrollo, 2015
In this study it is reported and described a regular echinoderm of Pseudocidaris genus in the Rosablanca Formation of Lower Cretaceous at the municipality of Zapatoca (Santander, Colombia).
Javier Hernando Jerez-Jaimes, Alvaro Sergio Osma-Duarte, Joan Sebastián Puentes-Pérez   +2 more
doaj   +1 more source

Guidebook for the post-congress fieldtrip in the Vocontian Basin, SE France (September 11-13, 2008).- 12th Meeting of the International Nannoplankton Association (Lyon, September 7-10, 2008)

Carnets de Géologie, 2008
• Chapter 1. The Aalenian-Bajocian (Middle Jurassic) of the Digne area • Chapter 2. The Global Boundary Stratotype Sections and Points (GSSP) of the Hauterivian: La Charce section (Drôme, France, Vocontian Basin) • Chapter 3.
Mattioli Emanuela, Gardin Silvia, Giraud Fabienne, Olivero Davide, Pittet Bernard, Reboulet Stéphane   +5 more
doaj  

Isolated tooth reveals hidden spinosaurid dinosaur diversity in the British Wealden Supergroup (Lower Cretaceous). [PDF]

PeerJ, 2023
Barker CT, Naish D, Gostling NJ.
europepmc   +1 more source

Evidence of two lineages of metriorhynchid crocodylomorphs in the Lower Cretaceous of the Czech Republic [PDF]

Acta Palaeontologica Polonica, 2021
DANIEL MADZIA, SVEN SACHS, MARK T. YOUNG, ALEXANDER LUKENEDER, PETR SKUPIEN   +4 more
doaj  

Organic walled microfossils in wet peperites from the early Cretaceous Paraná-Etendeka volcanism of Brazil. [PDF]

Sci Rep, 2023
Del Mouro L, Becker-Kerber B, Janasi VA, de Araújo Carvalho M, Waichel BL, Lima EF, Rossetti LMM, Cruz V, Silva MS, Famelli N, Ortega-Hernández J.   +10 more
europepmc   +1 more source

Gravity flow deposits in Mesozoic sediments of Chukotka microplate (North‐East Russia)

The Depositional Record
In the Mesozoic succession of the Anyui–Chukotka fold system (North‐East Russia), five stratigraphic intervals were recognised that have an abundance of gravity flow deposits.
Marianna I. Tuchkova, Elena V. Vatrushkina, Sergey D. Sokolov   +2 more
doaj   +1 more source