نتایج جستجو برای: danian
تعداد نتایج: 133 فیلتر نتایج به سال:
The Yacoraite Formation (Salta rift, Argentina) consists of Maastrichtian–Danian lacustrine carbonate and siliciclastic deposits with interbedded volcanic ash layers, organized in four third-order stratigraphic sequences. It offers the exceptional opportunity to jointly apply situ zircon U-Pb laser ablation-inductively coupled plasma mass spectrometry geochronology that resulted two distinct de...
The article provides an overview of all known 39 localities the Paleogene turtles Eastern Europe. Numerous remains are described for first time from 19 localities, which six new, and 13 materials were only mentioned previously. Among them Pan-Trionychidae indet., Pan-Cheloniidae Dermochelyidae indet. Pan-Testudines as well pan-cheloniids Argillochelys sp. Ypresian Novoivanovka or Lutetian Gruzi...
The Deccan Trap continental flood basalt eruptions of India occurred c. 67–63 Ma, thus spanning the Cretaceous–Tertiary boundary (65 Ma). Deccan eruptions were coeval with an interval of profound global environmental and climatic changes and widespread extinctions, and this timing has sparked controversy regarding the relative influence of Deccan volcanism upon endCretaceous catastrophic events...
چکیده ندارد.
An assemblage of large and robust pedunculate scalpellomorph cirripede barnacles from the Maastrichtian Kalaat Senan (Tunisia) is described, their stratigraphical position within Abiod El Haria formations noted. Four taxa are documented, three which confined to area, namely Pachyscalpellum heltzeli , Cretiscalpellum robaszynskii sp. nov. Diotascalpellum sp.; fourth, curvatum was previously reco...
Abstract Squat lobsters within Galatheoidea are very diverse with over 1,300 extant species that live in all marine ecosystems, but their fossil record, starting the Middle Jurassic, consists of only ~200 species. Consequently, much remains to be learned about biodiversity, phylogeny, and paleobiogeography. We describe five new ( Galatheites sforum n. sp., Kimmeridgian, Late Germany; Vasconilia...
Abstract The present study aims to investigate the origin, type, thermal maturity and hydrocarbon generation potential of organic matter paleo-depositional environment Early Paleocene (Danian) Hangu Formation outcropped in Kala-Chitta Range Northwest Pakistan, Eastern Tethys. Organic-rich shale coal intervals were utilized for geochemical analyses including TOC (total carbon) Rock–Eval pyrolysi...
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