The discovery of the Fezouata biota in the latest Tremadocian of southeastern Morocco has
significantly changed our understanding of the early Phanerozoic radiation. The shelly fossil …

Abstract The Ordovician of Scandinavia (ie Denmark, Norway and Sweden) has been
investigated for over two centuries and, through time, various chronostratigraphic schemes …

The lower Paleozoic succession of central Europe exposed in the Bohemian Massif is a
classic area of geology with a long-standing tradition of research dating back to the …

The phylogenetic position of aglaspidids, a problematic group of Lower Palaeozoic
arthropods of undetermined affinities, is re‐examined in the context of the major Cambrian …

A review of all currently known Ordovician trilobites with soft parts described or figured from
West-Gondwana, European peri-Gondwana and Avalonia shows remains of the digestive …

Exoskeleton moulting is the process of shedding the old exoskeleton to enable growth,
development and repair, representing a crucial recurrent event in the life histories of all …

Early developmental stages of euarthropods are exceptionally rare in the fossil record. This
hampers our understanding of the biology, phylogeny, and development of this extremely …

Cornute stylophorans are a minor, although typical, component of Middle–Late Ordovician
echinoderm assemblages adapted to soft siliciclastic substrates in high-latitude peri …

Abstract The Anti-Atlas contains a thick, volcanic-free Ordovician succession that originally
deposited in a passive-margin basin. Three main sedimentary packages are bounded by …

The origin of mandibulate arthropods can be traced back to the Cambrian period to several
carapace-bearing arthropod groups, but their morphological diversity is still not well …