Results 31 to 40 of about 105,245 (213)

Osteology and relationships of Rhinopycnodus gabriellae gen. et sp. nov. (Pycnodontiformes) from the marine Late Cretaceous of Lebanon [PDF]

open access: yes, 2013
The osteology of Rhinopycnodus gabriellae gen. and sp. nov., a pycnodontiform fish from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail.
Capasso, Luigi, Taverne, Louis
core   +3 more sources

The First Fossil Coelacanth from Thailand

open access: yesDiversity, 2023
Mawsoniidae is a family of coelacanths restricted to the Mesozoic. During the Cretaceous, mawsoniids were mainly represented by the Mawsonia/Axelrodichthy complex, long known to be from western Gondwana only (South America and Africa).
Lionel Cavin   +5 more
doaj   +1 more source

Pterosaurs from the Late Cretaceous of Angola

open access: yesDiversity, 2022
Here, we describe the first pterosaur remains from Angola, an assemblage of fourteen bones from the Lower Maastrichtian marine deposits of Bentiaba, Namibe Province. One new species is introduced, Epapatelo otyikokolo, gen. et sp. nov., which comprises an articulated partial left humerus and ulna as well as an articulated left ulna and radius (from a ...
Alexandra E. Fernandes   +6 more
openaire   +4 more sources

LATE CREATACEOUS-CENOZOIC SEDIMENTS OF THE BAIKAL RIFT BASIN AND CHANGING NATURAL CONDITIONS

open access: yesГеодинамика и тектонофизика, 2015
The late Cretaceous-Cenozoic sediments of fossil soils and weathering crusts of the Baikal rift have been subject to long-term studies. Based on our research results, it is possible to distinguish the following litho-stratigraphic complexes which are ...
Viktor D. Mats   +3 more
doaj   +1 more source

The thermal history of the Western Irish onshore [PDF]

open access: yes, 2014
We present here a low-temperature thermochronological study that combines the apatite fission-track and (U + Th)/He dating methods with a pseudo-vertical sampling approach to generate continuous and well-constrained temperature–time histories from the ...
Chew, David   +2 more
core   +2 more sources

High-precision U-Pb ages in the early Tithonian to early Berriasian and implications for the numerical age of the Jurassic-Cretaceous boundary [PDF]

open access: yes, 2019
The numerical age of the Jurassic-Cretaceous boundary has been controversial and difficult to determine. In this study, we present high-precision U-Pb geochronological data around the Jurassic-Cretaceous boundary in two distinct sections from different ...
Aguirre-Urreta, Maria Beatriz   +10 more
core   +1 more source

Analysis of the Importance of Extension in Accounting for the Post-Carboniferous Subsidence of the North Sea Basin [PDF]

open access: yes, 1986
Post Carboniferous sedimentary deposition in the Central North Sea basins can be separated into three major periods: Permian, Triassic and mid-Jurassic through present.
Hellinger, Steven J.   +2 more
core   +1 more source

Contrasting characteristics observed between the early and late Cretaceous periods: Evidences from geochemical and isotopic studies of clastic rocks from the Tethys Himalaya, India

open access: yesJournal of Asian Earth Sciences: X
This study uses a multi-proxy approach on Cretaceous shales (consisting of early Cretaceous Giumal shale and late Cretaceous Chikkim shale of Lagudarsi Group) from the Spiti region of the Indian Tethys Himalaya to assess paleo-weathering, redox ...
Heena Khan   +3 more
doaj   +1 more source

Cool episodes in the Late Cretaceous - exploring the effects of physical forcing on Antarctic snow accumulation [PDF]

open access: yes, 2010
Until recently it was assumed that the major modern ice sheets on Antarctica became established around the Eocene-Oligocene boundary about 34 Ma ago. But new evidence (e.g.
Flögel, Sascha   +2 more
core  

Tidal-influenced transgression processes in late cretaceous Termit Basin, Niger

open access: yesFrontiers in Earth Science
Tidal characteristics observed in sediment cores serve as significant indicators of marine paleo-environments. In order to comprehend the sedimentary processes taking place in the Termit Basin and its connections with the New Tethys and the southern ...
ShengQiang Yuan   +9 more
doaj   +1 more source

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