Results 61 to 70 of about 613 (184)

The Triassic Rift Event in the Northern North Sea, a New Tectonic Model for the Utsira High Area

open access: yesBasin Research, Volume 37, Issue 4, July–August 2025.
Early Rift development started with the formation of Late Permian Rotliegend half‐grabens. Pre‐existing structures influenced rift location and evolution. Rift developed through Triassic times with the regional strain transferred progressively from east to west.
Riccardo Sordi   +3 more
wiley   +1 more source

The Kimmeridgian ammonite faunas of Milne Land, central East Greenland

open access: yesBulletin Grønlands Geologiske Undersøgelse, 1985
Extensive new collections of ammonites made bed by bed in many sections through the Kimmeridgian (Lower Kimmeridgian sensu anglico) of Milne Land are described. These are used to revise and amplify the earlier accounts in a classical monograph of 1935 by Spath.
T Birkelund, J.H Callomon
openaire   +2 more sources

Neural canal ridges: A novel osteological correlate of postcranial neuroanatomy in dinosaurs

open access: yesThe Anatomical Record, Volume 308, Issue 5, Page 1349-1368, May 2025.
Abstract In this article, we document the widespread presence of bony ridges in the neural canals of non‐avian dinosaurs, including a wide diversity of sauropods, two theropods, a thyreophoran, and a hadrosaur. These structures are present only in the caudal vertebrae.
Jessie Atterholt   +7 more
wiley   +1 more source

Hypelasma salevensis (FAVRE, 1913) from the Upper Kimmeridgian of the French Jura, and the Origin of the Rudist Family Requieniidae

open access: yesGeologia Croatica, 2003
The requieniid rudist species ‘Matheronia’ salevensis FAVRE, first described from the Tithonian of Mont Salève, eastern France, is transferredto the genus Hypelasma PAQUIER, which is distinguished from Matheronia by possession of a ...
Christian Gourrat   +2 more
doaj   +1 more source

Mesogalathea ardua sp. nov., a new species of squat lobster (Decapoda, Galatheidae) from the Upper Jurassic olistolith at Velika Strmica (Dolenjska, Slovenia)

open access: yesGeologija, 2020
A new species of squat lobster, Mesogalathea ardua sp. nov., is described on the basis of newly collected dorsal carapaces from an Upper Jurassic reefal limestone olistolith at Velika Strmica.
Rok GAŠPARIČ   +2 more
doaj   +1 more source

Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Late Jurassic evolution of the Jameson Land Basin, East Greenland – implications of the Blokelv-1 borehole [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2018
Data from the recently drilled, fully cored Blokelv-1 borehole and previous cored boreholes in the Upper Jurassic of Jameson Land, central East Greenland, are integrated with published field studies to address the depositional evolution of the Jameson ...
Morten Bjerager   +5 more
doaj  

Ostracod Biostratigraphy of the Kimmeridgian in Northern and Western Europe

open access: yesDanmarks Geologiske Undersøgelse II. Række, 1970
The chronostratigraphical type profile of the Kimmeridgian of Dorset is subdivided biostratigraphically into five ostracod zones. Six other areas in Northern and Western Europe with Kimmeridgian ostracods are examined. The species are listed, counted, and examined in relation to the zones of the type Kimmeridgian.In the Lower Kimmeridgian the ostracod ...
Ole Bruun Christensen, Thomas I Kilenyi
openaire   +2 more sources

DOCUMENTATION AND SIGNIFICANCE OF TECTONIC EVENTS IN THE NORTHERN TABAS BLOCK (EAST-CENTRAL IRAN) DURING THE MIDDLE AND LATE JURASSIC

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2004
Apart from global sea-level fluctuations, the sedimentary pattern of the northern Tabas Block during the Middle and Late Jurassic was mainly governed by tectonic events of varying intensity and areal extent.
KAZEM SEYED-EMAMI   +2 more
doaj   +1 more source

CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY OF UPPER CALLOVIAN-LOWER BERRIASIAN SUCCESSIONS FROM THE SOUTHERN ALPS, NORTH ITALY

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2010
Calcareous nannofossil biostratigraphy was investigated in uppermost Callovian-lower Berriasian sections from Southern Alps, previously detected through magnetostratigraphy, in order to achieve an integrated stratigraphic framework valid at low latitudes.
CRISTINA EMANUELA CASELLATO
doaj   +1 more source

Plant remains from the Middle–Late Jurassic Daohugou site of the Yanliao Biota in Inner Mongolia, China

open access: yesActa Palaeobotanica, 2017
A late Middle–early Late Jurassic fossil plant assemblage recently excavated from two Callovian– Oxfordian sites in the vicinity of the Daohugou fossil locality in eastern Inner Mongolia, China, was analysed in detail.
CHRISTIAN POTT, BAOYU JIANG
doaj   +1 more source

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