Results 61 to 70 of about 1,865 (81)

The first occurrence of “Plesiochelyidae” marine turtles in the Early Cretaceous of South America

open access: yesSwiss Journal of Palaeontology
Thalassochelydians represent one of the earliest radiations of coastal to marine-adapted turtles, spanning from the Jurassic to Cretaceous periods. This study describes Craspedochelys renzi sp.
Edwin-Alberto Cadena   +5 more
doaj   +1 more source

THE CISMON APTICORE (SOUTHERN ALPS, ITALY): A "REFERENCE SECTION " FOR THE LOWER CRETACEOUS AT LOW LATITUDES

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 1998
APTICORE at the Cismon Valley (Belluno Basin, Southern Alps) penetrated 131.8 m of limestones, marlstones and "black shales". The cored interval extends from the Upper Aptian down to the lower Upper Hauterivian (about 117-130 Ma) and can be considered a "
ELISABETTA ERBA, ROGER L. LARSON
doaj   +1 more source

Distinguishing angiophytes from the earliest angiosperms: A Lower Cretaceous (Valanginian-Hauterivian) fruit-like reproductive structure [PDF]

open access: yes, 2009
A remarkably diverse Lower Cretaceous (Valanginian-Hauterivian) fl ora at Apple Bay, Vancouver Island, preserves seed plants at an important time of fl oristic evolutionary transition, about the same time as the earliest fl owering plant megafossils. The
Stockey, R.A., Rothwell, G.W.
core   +1 more source

Application of the Electrical (Geophysical) Method for the Identification of the Sealed Bevel in the Coastal Region of Walidia Province of el Jadida – Morocco

open access: yesE3S Web of Conferences, 2018
The Walidia area knows a great development of agricultural, industrial, maritime activities and a very great demographic expansion. This development is accompanied by a growing demand for water.
Elfjiji H., Boukdir A., Zitouni A.
doaj   +1 more source

Platform-induced clay-mineral fractionation along a northern Tethyan basin-platform transect: implications for the interpretation of Early Cretaceous climate change (Late Hauterivian-Early Aptian) [PDF]

open access: yes, 2008
High-resolution clay-mineral analyses were performed on upper Hauterivian to lower Aptian sediments along a platform-to-basin transect through the northern Tethyan margin from the Neuchâtel area (Switzerland), to the Vocontian Trough (France) in order to
Godet, Alexis   +3 more
core   +1 more source

MIDDLE JURASSIC-LOWER CRETACEOUS BIOSTRATIGRAPHY IN THE CENTRAL PONTIDES (TURKEY): REMARKS ON PALEOGEOGRAPHY AND TECTONIC EVOLUTION

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 1998
The deposition of Jurassic-Lower Cretaceous carbonates in the Pontides was controlled mainly by the evolution of an Atlantic-type continental margin in the Tethys.
BORA ROJAY, DEMIR ALTINER
doaj   +1 more source

Orbital control of the anoxic events in the Hauterivian andBarremian stages

open access: yes, 2021
National audienceEpisodes of Environmental Changes (EECs) correspond to reinforced greenhouseconditions associated to modifications of the carbon cycle that punctuated the EarlyCretaceous. From the latest Hauterivian to the Barremian, three EECs occurred
Company, Miguel   +4 more
core  

A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage [PDF]

open access: yes, 2017
A new CA-ID TIMS U–Pb age of 130.39 ± 0.16 Ma is presented here from the Pilmatué Member of the Agrio Formation, lower Hauterivian of the Neuquén Basin in west-central Argentina.
Lescano, Marina A.   +20 more
core   +1 more source

A new Hauterivian palynoflora from the Vale Cortiço site (central Portugal), and its palaeoecological implications for western Iberia.

open access: yesActa Palaeobotanica, 2019
Palynofloral assemblages are an invaluable source of information about the interactions between fossil plants and their environments. Here we describe a new Early Cretaceous palynoflora from the Lusitanian Basin in the Estremadura region of central ...
MÁRIO MIGUEL MENDES   +4 more
doaj   +1 more source

DONNÉES NOUVELLES SUR LA STRATIGRAPHIE ET LA MICROPALÉONTOLOGIE DES SÉRIES CARBONATÉES DE TALUS ET DE BASSIN DU CRÉTACÉ INFÉRIEUR DU GARGANO (ITALIE MÉRIDIONALE)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
The stratigraphic revislon of the Iower Cretaceous successions from the Gargano peninsula provides new lithostratigraphic data ; two formations could be distinguished: the Vico del Gargano Limestones and the Mattinata Limestones corresponding to basin ...
ELENA LUPERTO SINNI, JEAN-PIERRE MASSE
doaj  

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