F. G o n z á l e z e t a l . G e o l o g i c a A c t a , 1 3 ( 4 ) , 3 4 5 3 6 1 ( 2 0 1 5 ) D O I : 1 0 . 1 3 4 4 / G e o l o g i c a A c t a 2 0 1 5 . 1 3 . 4 . 7 Upper Frasnian palynomorphs from the Catalan Coastal Chain 346 defined as Les Vilelles unit in the Priorat Massif (Sáez, 1982), is confusing. On the basis of the palynological content of two closely collected shale samples, Colodrón...

Palaeozoic ammonoids have been described for almost 200 years. Since the first nomination of the Carboniferous ammonoid “Ammonites Listeri” by Sowerby (1812), styles and contents of descriptions have significantly been modified and completed. The numbers of conch characteristics taken into account have increased considerably, and external as well as internal characters were evaluated to form a ...

A combined study of trace elements, carbon and oxygen isotopes was carried out for Carboniferous marine limestones from the Lower Yangtze platform in South China. The results provide insights into the influence of terrigenous input to Paleotethyan seawater, from which pure and impure carbonates precipitated. In terms of the correlations between the concentrations of elements with different prop...

The late Paleozoic was characterized by a series of continental collisions and ice ages. Despite the drastic environmental changes, sparse sulfur isotope data hinder our understanding biogeochemical cycle, especially during Early Permian. To overcome this potential bias, we present high-resolution record carbonate-associated sulfate (CAS) pyrite from Carboniferous-Permian successions Svalbard a...