The Central Asian Orogenic Belt (CAOB) is the world’s largest accretionary orogenic belt, and its formation related to closure of Paleo-Asian Ocean (PAO). However, time style PAO remain controversial. To address these issues, this paper presents zircon U-Pb dating, whole-rock geochemistry Lu-Hf isotope analyses volcanic rocks in Faku-Kaiyuan area on northern margin North China Craton. results s...

Eocicadellium grimaldii gen. et sp. nov., the oldest representative and first Triassic member of subfamily Karajassinae Shcherbakov, 1992, is described on basis six forewings from Middle-Upper Yanchang Formation northern China, widening duration biogeographic distribution this extinct subfamily. The new data represents known definite record in further explores palaeodiversity archijassids.

This contribution deals first new ICP-MS U–Pb zircon ages that indicate Middle- and Late Triassic magmatic episode tectonometamorphic events, respectively, for the central Patagonia region, instead of a Paleozoic history as previously estimated. The Calcatapul Formation consists (meta-) volcano-sedimentary syn-rift sequence deposited unconformably, shortly after extensional Gondwanide orogenic ...

A detailed magnetostratigraphic study, linked to a new latest Permian U–Pb ID-TIMS age, was undertaken on the continental Shichuanhe section (SCH) in North China order provide magnetic polarity scale for Late Permian–early Middle Triassic interval. Tilt-corrected mean directions of characteristic remanent magnetization pass reversal test and correspond site paleolatitude 18.1°N during Early Tri...

The Carboniferous–Triassic period was an important stage of global sea–land transformation, with coal formation in the Carboniferous, biological extinction at end Permian, and drought Triassic. MS-1 well Mosuowan High Junggar Basin is deepest drilled Northwestern China. In this paper, we investigate sedimentary environment climate evolution area central during Late Carboniferous–Early Permian b...

Abstract Triassic strata in the Greater Barents Sea Basin are important records of geodynamic activity surrounding catchments and sediment transport Arctic basins. This study is first attempt to investigate evolution these source areas through time. Our analysis budgets from subsurface data application BQART approach estimate catchment properties shows that (1) during Lower Triassic, supply was...

Abstract Study of the Mesozoic succession Franz Josef Land (FJL) has shed new insights on stratigraphy and geological history neighboring portion Arctic. Based composition pebbles cobbles from Lower Jurassic conglomerates, we suggest that pre‐Mesozoic NE Barents Sea comprises Cambrian metasandstones intruded by Late Paleozoic granites overlain Carboniferous–Permian sedimentary deposits. U‐Pb ZH...

Although the status of Crinoidea (sea lilies and featherstars) as sister group to all other living echinoderms is well-established, relationships among crinoids, particularly extant forms, are debated. All living species are currently placed in Articulata, which is generally accepted as the only crinoid group to survive the Permian-Triassic extinction event. Recent classifications have recogniz...

Generally Early Triassic floras are believed to be depauperate, suffering from protracted recovery following the Permian-Triassic extinction event. Here we present palynological data of an expanded East Greenland section documenting recovered floras in the basal Triassic (Griesbachian) and a subsequent fundamental floral turnover, postdating the Permian-Triassic boundary extinction by about 500...

The discovery of the first definitively correlated earliest Jurassic (200 million years before present) tetrapod assemblage (Fundy basin, Newark Supergroup, Nova Scotia) allows reevaluation of the duration of the Triassic-Jurassic tetrapod extinction event. Present are tritheledont and mammal-like reptiles, prosauropod, theropod, and ornithischian dinosaurs, protosuchian and sphenosuchian croco...