نتایج جستجو برای: barremian
تعداد نتایج: 234 فیلتر نتایج به سال:
The Mannar Basin extends over 45,000 km2 off the western coast of Sri Lanka. It has evolved due to multiphase rifting between Indo-Lanka landmasses during Barremian-Paleocene time. sediment thickness basin ranges from about 4 10 km. northern part is a targeted area for hydrocarbon exploration in Though two natural gas discoveries were made 2011, remains frontier lack well penetration and 3D sei...
Most of the Caribbean plate, which currently lies between American continents, represents a mantle plume-derived 8–20 km thick Cretaceous oceanic plateau that was formed in Pacific region and moved eastwards. The northern islands are largely made up dismembered island arc located along western entrance to inter-American (termed Great Arc Caribbean) mid-late Cretaceous. Importantly, timing litho...
BACKGROUND The Yellow Cat Member of the Cedar Mountain Formation (Early Cretaceous, Barremian?--Aptian) of Utah has yielded a rich theropod fauna, including the coelurosaur Nedcolbertia justinhofmanni, the therizinosauroid Falcarius utahensis, the troodontid Geminiraptor suarezarum, and the dromaeosaurid Utahraptor ostrommaysorum. Recent excavation has uncovered three new dromaeosaurid specimen...
The world of 120 million years ago was one of dynamic biological processes. During that time the flowering plants emerged as the dominant global floristic element, a transformative event that ultimately altered the character of the entire planet. Understandably, the rapid rise of angiosperms has intrigued paleoecologists and evolutionary biologists, who have strived to elucidate underlying expl...
A new genus and species of non-hadrosaurid hadrosauriform dinosaur, Brighstoneus simmondsi gen. et sp. nov., is described from the Lower Cretaceous Wessex Formation Isle Wight. The taxon has two autapomorphies, a nasal having modest bulla with convex sides, primary accessory ridges on lingual aspect maxillary crown. dentary at least 28 alveolar positions, which highest number recorded in an orn...
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