نتایج جستجو برای: cenomanian

تعداد نتایج: 614  

Journal: : 2022

The X Formation, which dates from the Late Cenomanian to early Turonian, is largest carbonate reservoir in Iraq's South Mesopotamian Basin. There are two shallowing-up depositional periods it, begin with deep water mudstone associated wackestone, gradually shallows into rudist and dominated by big foraminifera shoals barriers, followed lagoonal intertidal facies. identification of five distinct...

Journal: :journal of tethys 0

in order to microfacies studies of the cretaceous deposits, a section called korkouh was selected in kerman province in central iran area. the korkouh is on the bidou formation with angular unconformity and underlain by paleogene conglomerates with an erosional surface. the studied section basically contains lime and dolomitic limestone with the thickness of 146 meters with new fossils such as ...

2015
Serjoscha W. Evers Oliver W.M. Rauhut Angela C. Milner Bradley McFeeters Ronan Allain Andrew Farke

Sigilmassasaurus brevicollis is an enigmatic theropod dinosaur from the early Late Cretaceous (Cenomanian) of Morocco, originally based on a few isolated cervical vertebrae. Ever since its original description, both its taxonomic validity and systematic affinities were contentious. Originally considered to represent its own family, Sigilmassasauridae, the genus has variously been suggested to r...

موسوی حرمی, رضا, خانه باد, محمد , علامه, مرضیه , محبوبی, ‌اسداله ,

Aitamir Formation (Albian-Cenomanian) is one of the stratigraphic units in the Kopet Dagh basin that consists of glauconitic sandstone, siltstone, shale and limestone. Glaucony is present in all lithofacies of this formation and varies based on degree of maturity and color ranging from pale to very dark green. Percentage of glaucony in sandstones and shell beds ranges from 1 to 40, poorly to mo...

Journal: Geopersia 2017

The Cenomanian-Turonian Gharesu section in the east of Kopet-Dagh basin have been investigated to determine the relationship between palaeoenvironmental perturbations and nitrogen cycling across OAE2. This succession is composed of 43 m shale and marl interbedded with glauconitic sandstone and lies between Aitamir-Abderaz formations boundary. The nitrogen Isotope values fluctuate between 0‰ to ...

2016
Walter G. Joyce Tyler R. Lyson James I. Kirkland

BACKGROUND Bothremydidae is a clade of extinct pleurodiran turtles known from the Cretaceous to Paleogene of Africa, Europe, India, Madagascar, and North and South America. The group is most diverse during the Late Cretaceous to Paleogene of Africa. Little is known, however, about the early evolution of the group. METHODS We here figure and describe a fossil turtle from early Late Cretaceous ...

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