نتایج جستجو برای: turonian
تعداد نتایج: 378 فیلتر نتایج به سال:
Investigations on the calcareous nannofossils of Gulneri Formation are being done in northern Iraqi Dokan and Pushen areas, Sulimani, Northern Iraq. In this work, one biozone was established based results a detailed examination used to identify fifty species nannofossils; Quadrum gartneri Biozone (CC11) Lucianorhabdus maleformis (CC12) section, although study, three biozones were suggested; Mic...
ODP Site 762 (eastern Indian Ocean) includes a section of sediment that spans the Cenomanian-Turonian Boundary (CTB) and was deposited along a continental margin during a period of widespread oceanic 09. deficiency. The rare earth element (REE) content of preand post-boundary sediment is similar to that of present-day continental slope material deposited in well-oxygenated seawater, whereas the...
Procoelous caudal vertebrae, a carpometacarpus with a hypertrophied metacarpal II, and robust proximal and ungual phalanges of manual digit II of a small theropod dinosaur from the Upper Cretaceous (Turonian) Bissekty Formation at Dzharakuduk, Uzbekistan, show unequivocal synapomorphies of the clade Alvarezsauridae and thus are referred to it. The caudal vertebrae have a unique longitudinal can...
Based on a review of troodontid specimens from the territories of the former Soviet Union, including new discoveries from Uzbekistan, two dental morphotypes can be distinguished among Troodontidae from the Cretaceous of Asia: (1) unserrated teeth, present in Mei from Lujiatun (China; Early Cretaceous: Hauterivian-Barremian), an unnamed taxon from Hövöör (Mongolia; Early Cretaceous: Aptian-Albia...
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