Results 41 to 50 of about 40,548 (279)

Stratigraphic importance and migration trend of Miscellaneidae family in the Paleogene of Tethys basin, Sistan suture zone [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2020
Miscellaneidae is Paleogene larger index microfossils (middle Paleocene–early Eocene) that for determination of stratigraphic and palaeobiogeographic distributions are investigated in the Neo-Tethys Ocean.
Mohammadnabi Gorgij   +2 more
doaj   +1 more source

A Global Plate Model Including Lithospheric Deformation Along Major Rifts and Orogens Since the Triassic [PDF]

open access: yes, 2019
Global deep‐time plate motion models have traditionally followed a classical rigid plate approach, even though plate deformation is known to be significant.
Bower, Dan J.   +9 more
core   +1 more source

Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

open access: yesActa Palaeontologica Polonica, 2023
The rare Middle Jurassic ammonite Oecoptychius refractus is revisited based on material collected in southern Poland (Ogrodzieniec quarry) and France (St.-Laon near Loudun, western France). Based on available data and an evaluation of the literature, O.
SREEPAT JAIN   +3 more
doaj   +1 more source

Toarcian oceanic anoxic event: An assessment of global causes using belemnite C isotope records [PDF]

open access: yes, 2005
Two hypotheses have been proposed to explain simultaneous large negative excursions (up to 7% PeeDee belemnite) in bulk carbonate (delta(13)C(carb)) and organic carbon isotope records (delta(13)C(org)) from black shales marking the Toarcian oceanic ...
Bailey, TR   +5 more
core   +1 more source

THE EVOLUTIONARY LINEAGES OF THE MAASTRICHTIAN PLANKTIC FORAMINIFERA GENUS Plummerita IN THE TETHYS [PDF]

open access: yesScience Heritage Journal
Five phylogenetic lineages were observed by present author in the eleven Tethyan Maastrichtian planktic foraminiferal species of the genus Plummerita. These lineages help to define the major faunal changes from the species throughout of three groups of ...
Haidar Salim Anan
doaj   +1 more source

DNA barcoding reveals the coral “laboratory-rat”, Stylophora pistillata encompasses multiple identities [PDF]

open access: yes, 2013
Stylophora pistillata is a widely used coral “lab-rat” species with highly variable morphology and a broad biogeographic range (Red Sea to western central Pacific).
A Budd   +34 more
core   +2 more sources

ON FAUNOGENESIS OF TENEBRIONID BEETLES (COLEOPTERA: TENEBRIONIDAE) OF MIDDLE ASIA

open access: yesЮг России: экология, развитие, 2016
Aim. The critic analyses of works about faunogenesis of tenebrionid beetles of Middle Asia considering the new data about phylogeography of some Mediterranean Tenebrioidae; analyses of causes of disjunction in distribution of some darkling beetles ...
G. M. Abdurakhmanov, M. V. Nabozhenko
doaj   +1 more source

Metriorhynchidae (Crocodylomorpha: Thalattosuchia) del jurásico superior–cretácico inferior de la Cuenca Neuquina (Argentina), con comentarios sobre los moldes naturales del encéfalo [PDF]

open access: yes, 2015
Los Metriorhynchidae fueron los únicos Crocodylomorpha con un estilo de vida marino pelágico. Relacionado con este estilo de vida, su peculiar plan corporal permite diferenciarlos claramente de los demás Crocodylomorpha.
Herrera, Laura Yanina
core   +2 more sources

La formación Capas Rojas: caracterización y génesis

open access: yesEstudios Geologicos, 1999
Se analizan las características (litofacies, biofacies, edad, potencia, etc.) de la Formación Capas Rojas (Cretácico superior-Eoceno) que aflora extensamente en el Subbético, dentro de las Zonas Externas de la Cordillera Bética.
J. A. Vera, J. M. Molina
doaj   +1 more source

Response and Recovery of the Comanche Carbonate Platform Surrounding Multiple Cretaceous Oceanic Anoxic Events, Northern Gulf of Mexico [PDF]

open access: yes, 2015
The ubiquity of carbonate platforms throughout the Cretaceous Period is recognized as a product of high eustatic sea-level and a distinct climatic optimum induced by rapid sea-floor spreading and elevated levels of atmospheric carbon-dioxide.
Da-Gama, Rui O.B.P.   +5 more
core   +1 more source

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