Orbital pacing and secular evolution of the Early Jurassic carbon cycle
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance Cyclic variations in Earth’s orbit drive periodic changes in the ocean–atmosphere system at a time scale of tens to hundreds of thousands of years.
Stephen Hesselbo +2 more
exaly +2 more sources
Jurassic paleogeography of the Tian Shan: An evolution driven by far-field tectonics and climate
Earth-Science Reviews, 2018 The strongly intracontinental Tian Shan region, in Central Asia represents a key area to understand the long term evolution of continents in general and Asia in particular.
Marc Jolivet +2 more
exaly +2 more sources
Western Tethys Early and Middle Jurassic calcareous nannofossil biostratigraphy
Earth-Science Reviews, 2019 An exhaustive biostratigraphic study based on the calcareous nannofossil content from Lower and Middle Jurassic Lusitanian Basin sections in Portugal is here presented.
Jorge E Spangenberg +2 more
exaly +2 more sources
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +11 more sources
Redescription of the type specimens for the Late Jurassic rhynchocephalian Opisthias rarus and a new specimen of Theretairus antiquus from Quarry 9, Morrison Formation, Wyoming, USA [PDF]
Acta Palaeontologica Polonica, 2022 We reexamine and redescribe the type specimens and other associated material of the Late Jurassic rhynchocephalian Opisthias rarus, from Quarry 9 of the Morrison Formation.
JORGE A. HERRERA-FLORES +2 more
doaj +1 more source
Overview of the Les Isnards Ammonite Slab Geoheritage Site (Digne-les-Bains, Southeastern France) [PDF]
Geoconservation Research, 2021 The Digne-les-Bains ammonite slab is one of the most impressive geosites of the UNESCO Global Geopark of Haute-Provence and Réserve Naturelle Nationale Géologique de Haute-Provence.
Didier Bert, Jean-Simon Pagès
doaj +1 more source
Geology, 2021 Recent exploration has led to definition of a Middle–Late Jurassic copper belt with an extent of ∼2000 km along the southeast China coast. The 171–153 Ma magmatic-hydrothermal copper systems consist of porphyry, skarn, and vein-style deposits.
J. Mao +4 more
semanticscholar +1 more source
A Geochemistry study of the Sargelu Formation (Middle Jurassic) in terms of original mineralogy and palaeotemperature in the Lorestan area [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2022 The carbonate Sargelu Formation (Middle Jurassic) in the Lorestan area mainly consists of black calcareous shales and thin- to thick-bedded limestones with remarkable organic material. Integrated binary diagrams of trace elements and stable isotopes such
Mahmoud Sharafi +4 more
doaj +1 more source
Swiss Journal of Palaeontology, 2023 Ophiuroids, also known as brittle stars, are an important component of modern marine benthos, yet their fossil record is still poorly understood. Here, we describe new finds of ophiuroids from the upper Sinemurian (Lower Jurassic) of Asturias, north-west
Ben Thuy +2 more
doaj +1 more source
The enamel microstructure of Manidens condorensis: New hypotheses on the ancestral state and evolution of enamel in Ornithischia [PDF]
Acta Palaeontologica Polonica, 2020 Previous studies on enamel microstructure in Ornithischia have focused on derived lineages of this clade based on species from the northern hemisphere.
Marcos G. Becerra, Diego Pol
doaj +1 more source