We describe here the early Spathian (Early Triassic) Paris Biota decapod fauna from the
western USA basin. This fauna contains two taxa of Aegeridae (Dendobranchiata), namely …

Intensive sampling of three earliest Spathian sites represented by the Lower Shale unit and
coeval beds within the Bear Lake vicinity and neighboring areas, southeastern Idaho …

Protomonaxonid sponges are a major group of Cambrian and Ordovician fossils in
exceptionally preserved (especially Burgess Shale-type) faunas, but are rare thereafter …

After the end-Permian crisis and the extinction of their four Paleozoic subclasses, crinoids
rapidly recovered. This group is classically believed to have radiated from a small surviving …

Abstract Knowledge on the morphology of Early Triassic ophiuroids is very limited, in spite of
the relatively high number of described species. This hampers attempts to use morphology …

The end-Permian mass extinction is the largest global-scale event ever recorded; it also
corresponds to the expansion of the Modern Evolutionary Fauna, which will lead to present …

After the end-Permian mass extinction, the Early Triassic (∼ 251.9 to 247 Ma) is
characterized by several biotic crises that particularly affected marine faunas; accordingly …

Mantis shrimps (Stomatopoda) are marine benthic predators well known for their raptorial
claws that have, through time, evolved into unique structures with exceptional stunning …

Five new neoselachians from the Early Triassic of Spitsbergen are here described;
Synechodus sp., Synechodus incrementum, Rhomphaiodon minor, Rhomphaiodon …

Abstract The Lower Triassic fossil record of brittle stars is relatively rich, yet most records
published to date are based on poorly preserved or insufficiently known fossils. This …