Results 1 to 10 of about 5,375 (265)

Callovian-Oxfordian sedimentary microfacies in the middle of Block B on the right bank of the Amu Darya Basin, Turkmenistan

Energy Geoscience, 2022
The right bank of the Amu Darya Basin enjoys abundant natural gas resources, on which the Callovian-Oxfordian strata in the middle of Block B serve as the major horizons for natural gas production.
Chongyang Wu, Chuanjie Cheng, Liangjie Zhang, Bingsong Yu, Hongjun Wang   +4 more
doaj   +2 more sources

Substrate type and palaeodepth do not affect the Middle Jurassic taxonomic diversity of crinoids [PDF]

PeerJ, 2021
Crinoids are largely considered as good indicators for determining environmental conditions. They are robust proxies for inferring changes in salinity and sedimentation rate and for inferring substrate type. Some crinoid groups (e.g., certain comatulids,
Mariusz A. Salamon, Anna Feldman-Olszewska, Sreepat Jain, Bruno B.M. Ferré, Karolina Paszcza, Bartosz J. Płachno   +5 more
doaj   +3 more sources

Historical significance and taxonomic status of Ischyrodon meriani (Pliosauridae) from the Middle Jurassic of Switzerland [PDF]

PeerJ, 2022
Ischyrodon meriani is an obscure pliosaurid taxon established upon an exceptionally large tooth crown of a probable Callovian (Middle Jurassic) age that originates from Wölflinswil, Canton of Aargau, Switzerland.
Daniel Madzia, Sven Sachs, Christian Klug   +2 more
doaj   +3 more sources

Hybodont sharks of the English Bathonian and Callovian (Middle Jurassic). [PDF]

Palaeontology, 2008
Recent bulk sampling and study of museum collections has revealed a high diversity of hybodont sharks from the English Bathonian, with 15 species being recognised.
AGASSIZ, ANSORGE, ARKELL, BENTON, BIGOT, BONEHAM, BROOM, BROUGH, BROWN, BROWN, BŁAŻEJOWSKI, CAPPETTA, CAPPETTA, CAPPETTA, CAPPETTA, CASIER, CASIER, CHARLESWORTH, COPE, CUNY, CUNY, CUNY, DELSATE, DINELEY, DUFFIN, DUFFIN, DUFFIN, EGERTON, EGERTON, ERASMO, ESTES, EVANS, FRAAS, GLIKMAN, GUENNEGUES, HAY, HERMAN, HORTON, JAEKEL, KRIWET, KRIWET, MAISEY, MAISEY, MAISEY, MAISEY, MARTILL, METCALF, MEYER, NESSOV, OWEN, OWEN, PALMER, PATTERSON, PEYER, PHILLIPS, QUENSTEDT, REES, REES, REES, REES, REIF, RIEPPEL, SAVAGE, STROMER, SUMBLER, SWEETMAN, THIES, UNDERWOOD, UNDERWOOD, UNDERWOOD, UNDERWOOD, UNDERWOOD, WOODWARD, WOODWARD, WOODWARD, WOODWARD, ZANGERL   +76 more
core   +4 more sources

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

Rivista 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   +2 more sources

CALCAREOUS NANNOPLANKTON OF CALLOVIAN OF UKRAINE

Collection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine, 2013
Наведені дані вивчення вапняного нанопланктону з розрізів Дніпровсько-Донецької западини, Північно-Західного Донбасу, Гірського Криму. Аналіз поширення нанофосилій з вивчених розрізів, а також з розрізів Московської синеклізи, Саратовського Поволжя та Канівських дислокацій дозволяє виділити в келовеї дві нанопланктонні зони: Stephanolithuin hexum ...
A.V. Matveyev, D.S. Bondarev
openalex   +4 more sources

Callovian Marine Reptiles of European Russia

Diversity
Our knowledge of marine reptiles of the Callovian age (Middle Jurassic) is majorly based on the collections from the Oxford Clay Formation of England, which yielded a diverse marine reptile fauna of plesiosaurians, ichthyosaurians, and thalattosuchians ...
Nikolay Zverkov, Maxim Arkhangelsky, Denis Gulyaev, Alexey Ippolitov, Alexey Shmakov   +4 more
doaj   +2 more sources

ISOTOPIC ANALYSIS OF JURASSIC (CALLOVIAN) MOLLUSKS FROM THE CHRISTIAN MALFORD LAGERSTATTE (UK): IMPLICATIONS FOR OCEAN WATER TEMPERATURE ESTIMATES BASED ON BELEMNOIDS [PDF]

, 2015
Isotopic data (C and O) derived from Callovian (Middle Jurassic) mollusks (bivalves, ammonites and belemnoids, including true belemnites and Belemnotheutis) are presented from a narrow stratigraphic interval in the Christian Malford Lagerstätte, UK.
Hart, MB, Page, KN, Price, GD, Wilby, PR
core   +4 more sources

Cardioceratid and kosmoceratid ammonites from the Callovian of Yorkshire

, 1989
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
J. H. Callomon, John K. Wright
openalex   +3 more sources

Gondwanan cyrtocrinids uncover hidden diversity and crinoid dispersal pathways [PDF]

Scientific Reports
The post-Palaeozoic crinoid order Cyrtocrinida exhibits remarkable morphological diversity and ecological versatility, yet its fossil record from southern continents remains fragmentary and poorly understood.
Mariusz A. Salamon, Madani Benyoucef, Mohamed Amine Zaidi, Justyna Ciesielczuk, Imad Bouchemla, Bartosz J. Płachno   +5 more
doaj   +2 more sources