Results 1 to 10 of about 2,661 (202)

Valanginian occurrence of Pelomedusoides turtles in northern South America: revision of this hypothesis based on a new fossil remain [PDF]

open access: yesPeerJ, 2020
Pelomedusoides constitutes the most diverse group of Mesozoic and Cenozoic side-necked turtles. However, when it originated is still being poorly known and controversial.
Edwin-Alberto Cadena
doaj   +3 more sources

New dasycladales and microbiota from the lowermost Valanginian of the Mirdita zone [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2005
A rich diversified algal microbiota is described from the lowermost Valanginian limestone re­worked in the Upper Cretaceous elastics of the Metohija Cretaceous Unit (Mirdita Zone). Two new dasycladalean taxa are introduced: Zujovicella nov. gen.
Radoičić Rajka
doaj   +2 more sources

Lower Cretaceous Fossil Site near Leše: First Heteromorphic Ammonoid Site in Slovenia and Karawanken/Karavanke UNESCO Global Geopark [PDF]

open access: yesGeoconservation Research, 2021
The cross-border Geopark Karawanken/ Karavanke was established in 2011 to reflect the diverse geological composition and varied and rich natural and cultural heritage of the area.
Matija Križnar   +5 more
doaj   +1 more source

Recurrent volcanic activity recorded in araucarian wood from the Lower Cretaceous Springhill Formation, Patagonia, Argentina: Palaeoenvironmental interpretations [PDF]

open access: yesActa Palaeontologica Polonica, 2021
This paper describes a petrified trunk collected from a conglomerate bed of the Springhill Formation (Berriasian–Valanginian) in the Estancia El Álamo locality, Santa Cruz Province, Argentina.
Georgina M. Del Fueyo   +3 more
doaj   +1 more source

Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland [PDF]

open access: yesActa Palaeontologica Polonica, 2020
The first Early Cretaceous (Valanginian–Hauterivian) ammonite fauna from the lower part of the Kościeliska Marl Formation (Wściekły Żleb Member) of the Lower Sub-Tatric (Krížna) Nappe, in the Lejowa Valley of the Tatra Mountains are described.
Zdeněk Vašíček   +6 more
doaj   +1 more source

An anhanguerian pterodactyloid mandible from the lower Valanginian of Northern Germany, and the German record of Cretaceous pterosaurs [PDF]

open access: yesActa Palaeontologica Polonica, 2021
The record of Cretaceous pterosaur remains from Germany is sparse. The material recovered to date includes the fragmentary holotypes of Targaryendraco wiedenrothi and Ctenochasma roemeri, as well as a few isolated pterodactyloid teeth and some ...
Pascal Abel   +3 more
doaj   +1 more source

Biostratigraphy and Facies Analysis of Upper Valanginian-Upper Hauterivian (Sarmord Formation) in Maten Anticline, Northern Iraq

open access: yesIraqi Geological Journal, 2021
Biostratigraphical and sedimentological study of the Sarmord Formation (Upper Valanginian - Upper Hauterivian) at the southern limb of Maten anticline is conducted within a well-exposed section.
Mohammed Al-Abbasi   +2 more
doaj   +1 more source

Scleractinian corals from the Lower Cretaceous of the Alpstein area (Anthozoa; Vitznau Marl; lower Valanginian) and a preliminary comparison with contemporaneous coral assemblages

open access: yesSwiss Journal of Palaeontology, 2022
From the Vitznau Marl (lower Valanginian) at the locality Wart in northeastern Switzerland (Alpstein area), 18 species from 17 genera and 13 families are described, including the genera Actinaraea, Actinastrea, Adelocoenia, Aplosmilia, Axosmilia ...
Rosemarie Christine Baron-Szabo   +2 more
doaj   +1 more source

Facial-paleogeographic reconstructions of the Valanginian-Hauterivian strata belonging to the Lower Cretaceous Gydan Peninsula and the western part of the Yenisei-Khatanga regional foredeep [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2021
Paleogeographic reconstructions were carried out, sedimentation models were determined, and facies-paleogeographic maps were constructed for the Valanginian-Hauterivian clinoform structures of the Lower Cretaceous of the Gydan Peninsula and the western ...
Taninskaya N.V.   +7 more
doaj   +1 more source

Lower Cretaceous heteromorph ammonites (Ancyloceratina) from Leše near Prevalje (North Karavanke Mts. NE Slovenia)

open access: yesGeologija, 2020
The paper deals with newly discovered Valanginian-Hauterivian fauna of heteromorphic ammonites (Ancyloceratina) from locality south of the village of Leše above the Meža River valley (North Karavanke Mountains).
Matija KRIŽNAR   +2 more
doaj   +1 more source

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