Two new echinoid genera and species, Salvaster roberti gen. et sp. nov. and Pygolampas edita gen. et sp. nov. are described. They were collected in the Calcaires à Spatangues Formation (CSF) that consists of limestone and clay sediments deposited in the southeast of the Paris Basin (France) during the Early Hauterivian (Early Cretaceous). The CSF is dated from the Acanthodiscus radiatus chronoz...

This dataset inventories occurrence records of fossil echinoid specimens collected in the Calcaires à Spatangues Formation (CSF) that crops out in the southeast of the Paris Basin (France), and is dated from the Acanthodiscus radiatus chronozone (ca. 132 Ma, early Hauterivian, Early Cretaceous). Fossil richness and abundance of the CSF has attracted the attention of palaeontologists since the m...

High-resolution magnetic susceptibility and % CaCO 3 records (5 to 10 cm sampling interval) are used track astronomical cycles from a Lower Berriasian record central Tunisia. Six hundred twenty two samples were measured for carbonate content as paleoclimate proxies the detection of potential Milankovitch cycles. Elemental data using X-Ray fluorescence analyses was acquired 19 prove reliability ...

Abstract Crayfishes comprise a large and diverse group of freshwater lobster-like crustaceans. Despite being abundant in the recent, they are extremely rare fossil record. We revise putative occurrence Astacus multicavatusBell, 1863 from marine Hauterivian Speeton Clay (Speeton, United Kingdom), which was used few years ago as calibration representing AstacusFabricius, 1775 for divergence time ...

A fragmentary cervico-pectoral lateral spine and partial humerus of an ankylosaur from the Early Cretaceous (early Valanginian) of Gronau in Westfalen, northwestern Germany, are described. The spine shows closest morphological similarities to the characteristic cervical and pectoral spines of Hylaeosaurus armatus from the late Valanginian of England. An extensive comparison of distal humeri amo...

The present paper compiles an up-to-date taxonomic inventory of dasycladalean green algae of the KimmeridgianEarly Berriasian Plassen Carbonate Platform and their resediments in basinal sediments (e.g., Barmstein Limestone, Sillenkopf Formation) of the Northern Calcareous Alps of Austria (p.p. Germany). Today, the Plassen Carbonate Platform sensu lato (or Plassen Group) is divided into three in...