The Bajo de Veliz Formation (Paganzo Basin, Argentina) is one of the key upper Paleozoic successions characterizing the Carboniferous-Permian transition in westernmost Gondwana. A rich paleoflora with the first records of ...

The taxonomy, biostratigraphical and palaeogeographical distribution of the Lower Ordovician graptolite genus Bryograptus is evaluated. Bryograptus is recognized as a distinct triradiate anisograptid with a multiramous, ...

Paleomagnetic and biostratigraphic data from five marine sedimentary sections in the Argentine Neuquen basin have allowed to construct the Lower Jurassic Neuquen Composite Section. This composite section comprises 14 ...

Neoproterozoic stromatolites were first recognised in the Río de la Plata Craton (RPC) by González Bonorino (1954) in the Sierras Bayas Group (Argentina). The first body fossils were also described from this unit by Fairchild ...

In terms of their use as biostratigraphical tools, nautiloid cephalopods are the poor relations of ammonoids. Nevertheless, in certain situations, they may provide useful biostratigraphical data, particularly where other ...

The Late Cretaceous - Early Paleogene succession exposed in the type area of the Roca Formation (General Roca, Rfo Negro Province), has been sampled in detail. Analyses of the calcareous nannofossil assemblages indicate ...

Study of the Triassic floristic record of several stratigraphic units of southern and west‐central Argentina has permitted recognition of five Assemblage Biozones and three Stages, defined on the basis of Assemblage Biozone ...

We present an updated look at Carboniferous brachiopod biozonation from most of the world framedinto a revised Carboniferous palaeogeography, based on a selection of the literature published on Carboniferousbrachiopods ...