Results 41 to 50 of about 684 (174)

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

The Upper Jurassic sediments, Marib-Shabwa Basin, Yemen: Lithofacies aspects and sequence stratigraphic analysis

open access: yesEnergy Geoscience
The present study is devoted to understanding the evolution of the Upper Jurassic Sab'atayn Formation in the Marib-Shabwa Basin, Yemen, through a sequence stratigraphic analysis based on integrating datasets of sedimentology, seismic sections, and well ...
Mohammed Albaroot   +4 more
doaj   +1 more source

Late Jurassic-Early Cretaceous palynostratigraphy and palaeoclimate in the Andigama Basin, Sri Lanka

open access: yesJournal of Asian Earth Sciences: X, 2021
Sri Lanka consists of only ten percent of sedimentary rocks, and high-grade metamorphic rocks underlie the rest. Most of these sedimentary terrains are post-Gondwanic and such formations help to understand the geological history of the island.
Weerakoon Achchige Panchala Weerakoon   +8 more
doaj   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

open access: yesBiological Reviews, Volume 101, Issue 4, Page 1760-1778, August 2026.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan   +2 more
wiley   +1 more source

Upper Tithonian ammonites (Himalayitidae Spath, 1925 and Neocomitidae Salfeld, 1921) from Charens (Drôme, France)

open access: yesGeologica Carpathica, 2016
This contribution focuses on the Perisphinctoidea ammonite taxa from the Upper Tithonian at Charens (Drôme, south-east France). Emphasis is laid on five genera that belong to the families Himalayitidae and Neocomitidae.
Frau Camille   +3 more
doaj   +1 more source

A remarkable radiolarian assemblage from the Csővár area (Hungary) improves biostratigraphical correlation of the Rhaetian

open access: yesPapers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract In the Csővár area of north‐central Hungary a remarkably well‐preserved Rhaetian radiolarian fauna, in which conodonts were also found, has enabled the identification of 49 radiolarian species belonging to 35 genera. The fauna is dominated by the orders Spumellaria and Entactinaria over less diverse Nassellaria.
Tim Cifer, Viktor Karádi
wiley   +1 more source

On some Foraminifera of Tithonian Age from the Stramberg Limestone of Nesselsdorf.

open access: yesJournal of the Linnean Society of London, Zoology, 1900
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

The early fossil record of Caturoidea (Halecomorphi: Amiiformes): biogeographic implications

open access: yesSwiss Journal of Palaeontology, 2023
Caturoidea is a clade of Mesozoic predatory ray-finned fishes which lived mainly in the Jurassic. The clade has a few records in the earliest Cretaceous and only two in the Triassic. Among the latter, specimen MPCA 632 Caturus sp.
Adriana López-Arbarello   +3 more
doaj   +1 more source

Recording Kimmeridgian Palaeoclimate Changes Using Biofacial and Isotopic Analyses of Benthic Foraminifers From Normandy (Northwest France)

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract During the Kimmeridgian, the Wealdian Basin experienced several periodic disaerobic events, interpreted as the result of extensive rainfall patterns, high sea level and moderate stratification of the water column. These events are recorded in different regions of UK and France.
C. P. A.‐M. Colpaert   +3 more
wiley   +1 more source

New material of named fossil turtles from the Late Jurassic (late Kimmeridgian) of Wattendorf, Germany.

open access: yesPLoS ONE, 2020
The newly discovered plattenkalk (platy limestone) locality of Wattendorf, southern Germany, has yielded a diverse fauna and flora dated to the base of the late Kimmeridgian, Late Jurassic.
Walter G Joyce, Matthias Mäuser
doaj   +1 more source

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