A new mamenchisaurid from the Upper Jurassic Suining Formation of the Sichuan Basin in China and its implication on sauropod gigantism [PDF]
The Sichuan Basin has yielded abundant sauropod dinosaurs from the Middle-Late Jurassic, and Mamenchisauridae had predominated the dinosaur faunae during the Late Jurassic in the Sichuan Basin.
Xuefang Wei+12 more
doaj +2 more sources
Overview of the Les Isnards Ammonite Slab Geoheritage Site (Digne-les-Bains, Southeastern France) [PDF]
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
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]
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
A Geochemistry study of the Sargelu Formation (Middle Jurassic) in terms of original mineralogy and palaeotemperature in the Lorestan area [PDF]
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
The enamel microstructure of Manidens condorensis: New hypotheses on the ancestral state and evolution of enamel in Ornithischia [PDF]
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
Establishing the Lower-Middle Jurassic Boundary in the UNESCO Global Geopark Molina & Alto Tajo (Central Spain) [PDF]
The Global Boundary Stratotype Section and Point (GSSP) of the Aalenian Stage (base of the Middle Jurassic), was established in Fuentelsaz (Central Spain) by the International Commission on Stratigraphy (ICS) of the International Union of Geological ...
Antonio Goy+2 more
doaj +1 more source
Jurassic Marine Crocodiles in the Monts d’Ardèche UNESCO Global Geopark [PDF]
Located in France on the eastern edge of the Massif Central, the Parc naturel regional des Monts d’Ardèche, inscribed as a UNESCO Global Geopark in 2014, presents great geological diversity.
Bernard Riou+3 more
doaj +1 more source
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
Reexamination of the mandibular and dental morphology of the Early Jurassic mammaliaform Hadrocodium wui [PDF]
CT visualization of the mandible and dentition of Hadrocodium wui, a stem mammaliaform from the Lower Jurassic Lower Lufeng Formation of Yunnan, China has revealed new features not accessible by previous microscopic study of the fossil.
ZHE-XI LUO +4 more
doaj +1 more source
The aim of this study is to elucidate the character of the earliest phases of Jurassic rifting in North-East Greenland. To achieve this, detailed sedimentological analysis and geological mapping were undertaken on the outcrops of central Kuhn Ø (74°53’55’
Steven D. Andrews+2 more
doaj +1 more source