Results 51 to 60 of about 3,061 (198)

UPPER KIMMERIDGIAN AND TITHONIAN AMMONITES FROM THE TUNISIAN "DORSALE" (NE TUNISIA): UPDATED BIOSTRATIGRAPHY FROM THE JEBEL OUST

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2005
In the context of updating biostratigraphic analysis in the Upper Kimmeridgian-lowermost Berriasian from the whole of the Tunisian Dorsale (NE Tunisia), new results obtained from the Jebel Oust reference section are presented.
MABROUK BOUGHDIRI   +5 more
doaj   +1 more source

‘The big chunky belemnite’: a new relict megateuthidid from the Oxfordian (Late Jurassic) of Wyoming, USA, and its place in the evolutionary history of the group

open access: yesPapers in Palaeontology, Volume 12, Issue 5, September/October 2026.
Abstract We describe and discuss two finds of large and untypical belemnite rostra originating from the upper part of the Sundance Formation (Oxfordian) of Wyoming, USA. With a diameter reaching c. 60 mm at the anterior end, these rostra are the thickest known for belemnites so far.
Alexey P. Ippolitov   +3 more
wiley   +1 more source

Kimmeridgian–Berriasian stratigraphy and sedimentary evolution of the central Iberian Rift System (NE Spain)

open access: yes, 2019
Sequence-stratigraphic, biostratigraphic and strontium-isotopic data have made it possible to update what is known of the stratigraphy and sedimentary evolution of the Kimmeridgian–Berriasian synrift successions recorded in four subbasins (Aguilón ...
Gasca Pérez, José Manuel   +12 more
core   +1 more source

Diversity Patterns of Late Jurassic Chondrichthyans: New Insights from a Historically Collected Hybodontiform Tooth Assemblage from Poland

open access: yesDiversity, 2022
Here, we provide a detailed taxonomic reassessment of a historically collected chondrichthyan dental assemblage from the lower Kimmeridgian of Czarnogłowy in north-western Poland and discuss its significance for better understanding hybodontiform ...
Sebastian Stumpf   +2 more
doaj   +1 more source

Is Coccodontoidea valid? The systematic placement of the armoured Lebanese pycnodonts within Pycnodontiformes and the utility of homoplasy in resolving relationships using cladistic principles

open access: yesPapers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Although well studied since their discovery in the late 18th century, pycnodont fishes have undergone comparatively few phylogenetic analyses despite large numbers of new taxa being discovered in this diverse order. Two recently discovered families from the Late Cretaceous (Cenomanian) of Lebanon, Gladiopycnodontidae and Gebrayelichthyidae ...
John J. Cawley   +2 more
wiley   +1 more source

THE BIOSTRATIGRAPHY OF KIMMERIDGIAN DEPOSITS (UPPER JURASSIC)

open access: yesTectonics and Stratigraphy, 2012
 Наведено результати вивчення стратиграфії кімеріджськоих відкладень (верхня юра) Дніпровсько-Донецької западини і північно-західної окраїни Донбасу, дано їх палеонтологічне обґрунтування. 
openaire   +3 more sources

The Jurassic of Denmark and Greenland: The Upper Jurassic of Europe: its subdivision and correlation [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2003
In the last 40 years, the stratigraphy of the Upper Jurassic of Europe has received much attention and considerable revision; much of the impetus behind this endeavour has stemmed from the work of the International Subcommission on Jurassic Stratigraphy.
Zeiss, Arnold
doaj  

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

A Tropically Hot Late Jurassic North American Sundance Sea: Evidence for the Oxfordian Warm Interval

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract The Late Jurassic greenhouse climate was characterized by elevated atmospheric CO2 (pCO2) at 600–1,000 ppm and sea‐surface temperatures substantially warmer than today. These conditions peaked during the Oxfordian, when extensive epicontinental seaways, including the North American Sundance Sea, dominated mid‐latitude paleoceanography.
R. W. Reynolds   +9 more
wiley   +1 more source

Epizoic oysters on Kimmeridgian ammonites

open access: yes, 1968
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

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