Results 31 to 40 of about 19,743 (217)

First North American occurrence of hairy cicadas discovered in the Cenomanian (Late Cretaceous) of Labrador, Canada [PDF]

open access: yesActa Palaeontologica Polonica, 2020
We report the discovery of Maculaferrum blaisi gen. et sp. nov, the first occurrence of the family Tettigarctidae, informally known as hairy cicadas, in North America.
Alexandre V. Demers-Potvin   +3 more
doaj   +1 more source

Assessment of prospects for petroleum bearing Aptian-Albian-Cenomanian strata of the Yamal peninsula - north of Western Siberia, on the basis of 2D seismic survey [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2022
The article presents a brief description of the geological structure and petroleum potential of the Aptian-Albian-Cenomanian strata. On the basis of 2D seismic exploration as part of the Aptian and Albian-Cenomanian levels, new promising objects were ...
Smirnov O.A., Borodkin V.N.
doaj   +1 more source

Evidence of a Cenomanian shallow-marine carbonate platform in the northwestern margin of the Bortziriak-Cinco Villas massif, eastern Basque-Cantabrian Basin

open access: yesGeogaceta, 2023
Basin margin evolution of rift basins is not always well constrained. In the northeastern margin of the Basque-Cantabrian Basin, a revision of a carbonate succession permits deciphering the transition from synto post-rift phases in the poorly studied ...
Martin Ladron de Guevara Aguirreche   +5 more
doaj   +1 more source

Lower and Middle Cenomanian ammonites from the Morondava Basin, Madagascar [PDF]

open access: yes, 2013
Lower and Middle Cenomanian ammonite assemblages have been collected on a bed-by-bed basis from localities at Vohipaly and Mahaboboka, Madagascar, as well as from outcrops around Berekata, all in the Morondava Basin, southwest Madagascar.
Walaszczyk, I.   +9 more
core   +2 more sources

The Plenus Cold Event Record in the Abyssal DSDP Site 367 (Cape Verde, Central Atlantic): Environmental Perturbations and Impacts on the Nitrogen Cycle

open access: yesFrontiers in Earth Science, 2021
The Oceanic Anoxic Event 2, at the Cenomanian-Turonian boundary (∼93.9 Ma), was an episode of widespread burial of organic matter in marine sediments, underlined by a positive carbon-isotope (δ13C) excursion observed worldwide.
Laurent Riquier   +7 more
doaj   +1 more source

Regional chronostratigraphic synthesis of the Cenomanian-Turonian Oceanic Anoxic Event 2 (OAE2) interval, Western Interior Basin (USA): New Re-Os chemostratigraphy and 40Ar/39Ar geochronology

open access: yesGSA Bulletin, 2020
Fluctuations in depositional conditions during the onset of severe climate events in Earth history predispose stratigraphic archives to hiatuses, often hindering complete reconstructions of paleoclimate events and their triggers.
Matthew M. Jones   +5 more
semanticscholar   +1 more source

Two new wedge-shaped beetles in Albo-Cenomanian ambers of France (Coleoptera: Ripiphoridae: Ripiphorinae)

open access: yesEuropean Journal of Entomology, 2004
Paleoripiphorus deploegi gen. n., sp. n. and Macrosiagon ebboi sp. n., described from two French Albo-Cenomanian ambers (mid Cretaceous), are the oldest definitely identified representatives of the Ripiphoridae: Ripiphorinae.
Vincent PERRICHOT   +2 more
doaj   +1 more source

A new Upper Cretaceous species of Chresmoda from Lebanon - a latest representative of Chresmodidae (Insecta: Polyneoptera inc. sed.): first record of homeotic mutations in the fossil record of insects

open access: yesEuropean Journal of Entomology, 2004
The most recent representative of the semi-aquatic insect family Chresmodidae is described from the Lebanese Cenomanian marine lithographic limestone.
André NEL   +3 more
doaj   +1 more source

Palaeobiology and evolutionary context of Angulithes mermeti, a streamlined early Late Cretaceous shallow-water nautiloid [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Cretaceous nautiloids are commonly characterized by inflated shells and prolonged stratigraphic ranges. In the Albian, the species of Angulithes appeared and compressed, short-lived forms with narrow venters emerged during the Cenomanian age.
Markus Wilmsen , Emad Nagm
doaj   +1 more source

Gladiopycnodontidae, a new family of pycnodontiform fi shes from the Late Cretaceous of Lebanon, with the description of three genera [PDF]

open access: yes, 2013
The osteology of Gladiopycnodus karami gen. et sp. nov., of Monocerichthys scheuchzeri gen. et sp. nov. and of Rostropycnodus gayeti gen. et sp. nov., three new fossil fishes from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail ...
Taverne, Louis   +4 more
core   +1 more source

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