Results 21 to 30 of about 474 (164)

New ophthalmosaurid ichthyosaurs from the European Lower Cretaceous demonstrate extensive ichthyosaur survival across the Jurassic-Cretaceous boundary. [PDF]

open access: yesPLoS ONE, 2012
BackgroundIchthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one during ...
Valentin Fischer   +9 more
doaj   +1 more source

Osteology and Taxonomy of British Wealden Supergroup (Berriasian–aptian) Ankylosaurs (Ornithischia, Ankylosauria)

open access: yesJournal of Vertebrate Paleontology, 2020
Ankylosaurs, dinosaurs possessing extensive body armor, were significant components of terrestrial ecosystems from the Middle Jurassic–latest Cretaceous. They diversified during the Early Cretaceous, becoming globally widespread. The Lower Cretaceous Wealden Supergroup (Berriasian–Aptian) of Britain has produced abundant ankylosaur material, with three
Thomas J. Raven   +3 more
openaire   +1 more source

MIDDLE JURASSIC - EARLY CRETACEOUS INTEGRATED BIOSTRATIGRAPHY (AMMONITES, CALCAREOUS NANNOFOSSILS AND CALPIONELLIDS) OF THE CONTRADA DIESI SECTION (SOUTH-WESTERN SICILY, ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2004
Facies and biostratigraphic analyses of the Contrada Diesi succession, cropping out along the northern slope of Mt. Magaggiaro (Sciacca, SW Sicily), provided new data on the Middle Jurassic-Early Cretaceous pelagic sedimentation in the Saccense domain ...
MARIA CONCETTA MARINO   +7 more
doaj   +1 more source

BERRIASIAN-HAUTERIVIAN SHALE SEQUENCE AND ASSOCIATED PINCH-OUT TRAP PROSPECTS OF THE YAMAL PENINSULA

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2018
Based on detailed seismic and well data interpretation, a Berriasian-Early Hauterivian voskhodnaya sequence of shale was distinguished as a part of Akhskaya suite in the south-west of the Yamal Peninsula.
A. A. Kurkin   +3 more
doaj   +1 more source

The origin of the Pycnodonteinae and relationship between gryphaeas and true pycnodontes [PDF]

open access: yesActa Palaeontologica Polonica, 2018
Berriasian (Early Cretaceous) oyster Pycnogryphaea weberae from Crimea is one of the earliest known pycnodonteine oysters. Examination of shell morphology and microstructure of this species shows that it shares characters of the subfamilies Gryphaeinae ...
Igor N. Kosenko
doaj   +1 more source

Linoporella buseri Radoičić, 1975, revisited: A Liassic dasycladalean alga from the Dinarides and continental Italy [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2009
The Liassic Linoporella buseri is re-examined, on the basis of an abundant material of reefal origin, originating from the newly described type-locality in Slovenia. It is compared with the Berriasian-Valanginian type-species L.
Radoičić Rajka   +2 more
doaj   +1 more source

On the diversity of microfossils in the Bazhenov Horizon of Western Siberia (Late Jurassic–Early Cretaceous)

open access: yesGeoresursy
Paleontological remains from the Bazhenovo Horizon of Western Siberia (Tithonian–Berriasian) are represented by macro- and microfossils. The Horizon had a marine genesis and the basis of ecosystem of this paleobasin composed of pelagic organisms ...
E. O. Amon   +3 more
doaj   +1 more source

Lower Cretaceous (Berriasian-Aptian) biostratigraphy of the Neuquén Basin

open access: yesGeological Society, London, Special Publications, 2005
Abstract The Berriasian-Aptian succession in the Neuquén Basin is mainly marine in the lower part and non-marine in the upper portion. A detailed ammonite zonation is presented for the Berriasian-?Early Barremian interval. While some ammonite taxa are endemic, others are widely distributed and there are several levels where correlation can be
Aguirre-Urreta, Maria Beatriz   +4 more
openaire   +2 more sources

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Iberopora bodeuri GRANIER & BERTHOU 2002 (incertae sedis) from the Plassen Formation (Kimmeridgian–Berriasian) of the Tethyan Realm

open access: yesGeologia Croatica, 2004
Iberopora bodeuri GRANIER & BERTHOU 2002, formerly knownas “crust problematicum” (SCHMID, 1996) is described from thePlassen Formation (Kimmeridgian–Berriasian) of the NorthernCalcareous Alps (NCA).
Felix Schlagintweit
doaj   +1 more source

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