Seed-cone architecture of Pararaucaria utahensis Gee, Howell et Dayvault sp. nov. (Cheirolepidiaceae) from the Upper Jurassic Morrison Formation of Utah, USA. [PDF]
Am J BotAbstract Premise Although Pararaucaria seed cones were first described 90 years ago, only in the last dozen years have we discovered the greater extent of the species diversity and paleogeographic range of the genus. Pararaucaria is now known across the mid‐latitudes of the Lower Jurassic to Lower Cretaceous in the northern and southern hemispheres ...
Gee CT, Howell MM, Dayvault RD.
europepmc +2 more sources
Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links
Geophysical Monograph Series, Page 191-228., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman +2 more
wiley +2 more sources
Middle–Upper Jurassic palynology of the South Sallum well, North Western Desert, Egypt
Egyptian Journal of Petroleum, 2018 Palynological analyses have been carried out on some samples of Middle–Upper Jurassic from the South Sallum well, North Western Desert, Egypt. A refinement of the original chronostratigraphy has been suggested and the stages of Bathonian – Callovian and ...
Tarek F. Mostafa +2 more
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Lithosphere, 2022 The Callovian-Oxfordian carbonate reservoir in central Block B on the right bank of Amu Darya is composed of different mechanical and petrophysical layers, where the tectonic fractures have major influences on both the performance and production of the ...
Yuzhong Xing +6 more
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Trans-border (east Serbia/west Bulgaria) correlation of the Jurassic sediments: Main Jurassic paleogeographic units [PDF]
Geološki Anali Balkanskoga Poluostrva, 2006 In the region across the Serbian/Bulgarian state border, there are individualized 5 Jurassic paleogeographic units (from West to East): (1) the Thracian Massif Unit without Jurassic sediments; (2) the Lužnica-Koniavo Unit - partially with Liassic in ...
Tchoumatchenco Platon +3 more
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Middle Jurassic radiolarian assemblages from Zlatar Mt. (SW Serbia) [PDF]
Geološki Anali Balkanskoga Poluostrva, 2010 Detailed micropalaeontological research of Jurassic siliceous rocks was performed at the locality Komarani on the eastern flanks of the area of Mt. Zlatar in SW Serbia.
Đerić Nevenka +2 more
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Middle Jurassic multi‐scale transgressive–regressive cycles: An example from the Lusitanian Basin
The Depositional Record, 2023 Multi‐scale transgressive–regressive cycles from the mid‐Jurassic were recognised in the Central Lusitanian Basin, Portugal. These cycles allow the depositional evolution of the basin to be better understood and aid in the construction of stratigraphic ...
Antonio J. C. Magalhães +15 more
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Journal of Palaeogeography, 2014 The Kutch Basin of western India is famous for its rich assemblages of the Callovian–Oxfordian ammonites. The family Oppelidae Douvillé is the second most diverse ammonite group after perisphinctids during the Middle–Upper Jurassic.
Pinaki Roy
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Building of the complicated seismogeological model of probable Callovian reservoirs within the Eastern Sulak swell of the Middle Caspian Sea area [PDF]
Нефтегазовая геология: Теория и практика, 2023 The purpose of this study was a detailed analysis of Callovian strata to identify the eventually zones of reservoir within the studied structure N, located of the southwestern part of the Middle Caspian Sea area.
Gal'perina A.A. +2 more
doaj
Callovian Marine Reptiles of European Russia
DiversityOur 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 +4 more
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