نتایج جستجو برای: albian

تعداد نتایج: 541  

Journal: :Geoscience frontiers 2022

The early Albian Oceanic Anoxic Event 1b (OAE 1b) is well documented in the Tethys, Pacific and North Atlantic, but few studies have evaluated whether or not terrestrial records of OAE exist. In order to identify infer possible driving mechanisms, an integrated multi-proxy study from late Aptian Fuxin lacustrine basin was conducted, including thick, organic-rich black mudstones, total organic c...

Journal: :Acta Geologica Polonica 2023

The lithostratigraphy, biostratigraphy, sequence stratigraphy, ammonite and inoceramid faunas of the Upper Albian, Cenomanian, Lower Turonian Karai Formation, highest unit Uttatur Group in the Pondicherry Sub-Basin Cauvery Basin Tamil Nadu, south India, are documented. Detailed logs and descriptions sections between Kulakkalnattam, Odiyam Kunnam, north-west of Garudamangalam presented. They pro...

2008
Anthony J. Martin Thomas H. Rich Gary C.B. Poore Mark B. Schultz Christopher M. Austin Lesley Kool Patricia Vickers-Rich

Early Cretaceous body and trace fossils in Victoria, Australia, establish the oldest known presence of parastacid crayfish (Decapoda: Astacidea, Parastacoidea) in freshwater environments of Australia, and the oldest known crayfish in Gondwana. Parastacid body fossils, comprised of a partial abdomen (Palaeoechinastacus australianus, gen. et sp. nov.) and two chelae, are from a fluvial deposit in...

2008
Malvina Lak Dany Azar André Nel Didier Néraudeau Paul Tafforeau

Trichomyia lengleti sp. nov., is described from the Lower Cenomanian amber of La Buzinie, Charente (SW France) from a piece of fully opaque amber. The Upper Albian Trichomyia swinhoei Cockerell, 1917 is transferred from the Trichomyiinae to the Sycoracinae incertae sedis stat. nov. T. lengleti is the oldest representative of the subfamily Trichomyiinae, supporting at least a Cretaceous diversif...

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