Results 181 to 190 of about 7,296 (255)

Evidence of large pliosaurids in the late Valanginian of Colombia

Cretaceous Research
Javier García-Guerrero, Fredy Parra Ruge, German A. Prieto, Edwin-Alberto Cadena   +3 more
openaire   +1 more source

Evolution of hind limb morphology of Titanosauriformes (Dinosauria, Sauropoda) analyzed via 3D geometric morphometrics reveals wide-gauge posture as an exaptation for gigantism. [PDF]

Elife
Páramo A, Mocho P, Escaso F, Ortega F.
europepmc   +1 more source

A brief review of non-avian dinosaur biogeography: state-of-the-art and prospectus. [PDF]

Biol Lett
Upchurch P, Chiarenza AA.
europepmc   +1 more source

Tip dating and Bayes factors provide insight into the divergences of crown bird clades across the end-Cretaceous mass extinction. [PDF]

Proc Biol Sci
Brocklehurst N, Field DJ.
europepmc   +1 more source

The Kimmeridgian (?) : early valanginian tectonic event on the peruvian margin

, 1990
Batty, M., Carlotto, V., Jacay, J., Jaillard, Etienne   +3 more
openaire   +1 more source

A new leaf inhabiting ascomycete from the Jurassic (ca 170 Mya) of Yorkshire, UK, and insights into the appearance and diversification of filamentous Ascomycota. [PDF]

IMA Fungus
Le Renard L, Strullu-Derrien C, Berbee M, Coiro M.   +3 more
europepmc   +1 more source

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Valanginian Weissert oceanic anoxic event

Geology, 2004
Biotic changes in nannofossils and radiolarians associated with the Valanginian δ 1 3 C anomaly are documented at Ocean Drilling Program Hole 1149B in the Pacific Ocean: they are coeval and similar to those previously documented in the Tethys, suggesting a global perturbation of marine ecosystems.
Elisabetta Erba
exaly   +3 more sources

The Valanginian isotope event: A complex suite of palaeoenvironmental perturbations

Palaeogeography, Palaeoclimatology, Palaeoecology, 2011
Abstract The Valanginian records a severe crisis of carbonate systems, both on platforms and in the pelagic realm. This crisis is roughly concomitant with the Weissert Event, characterized by a positive δ13C excursion of about 2‰ in marine carbonates. However, it is unclear if the response of these two carbonate systems to the global perturbations is
Bernard Pittet, Michael M Joachimski, Laurent Riquier   +2 more
exaly   +3 more sources

The Berriasian–Valanginian boundary in the Mediterranean Province of the Tethyan Realm: Ammonite and calcareous nannofossil biostratigraphy of the Vergol section (Montbrun-les-Bains, SE France), candidate for the Valanginian GSSP

Cretaceous Research, 2021
The Vergol locality (Montbrun-les-Bains, South-East France), a candidate section for the Valanginian GSSP (Global Stratotype Section and Point), was studied in detail for ammonites and calcareous nannofossils.
Stephane Reboulet
exaly   +2 more sources

A global palaeoclimatic reconstruction for the Valanginian based on clay mineralogical and geochemical data

Earth-Science Reviews, 2020
High-resolution clay mineral and δ18Ocarb analyses have been performed on three sections of Valanginian age (Early Cretaceous), from northwestern (~20–30°N) and southern (~53°S) Tethyan realms.
Jorge E Spangenberg, Karl B Föllmi
exaly   +2 more sources