Spiders are diverse, predatory arthropods that have inhabited Earth for around 400 million
years. They are well known for their complex venom systems that are used to overpower …

Studies in evolutionary biology and biogeography increasingly rely on the estimation of
dated phylogenetic trees using molecular clocks. In turn, the calibration of such clocks is …

Abstract For the kingdom Animalia, 1,552,319 species have been described in 40 phyla in a
new evolutionary classification. Among these, the phylum Arthropoda alone represents …

The classification of jumping spiders (Salticidae) is revised to bring it into accord with recent
phylogenetic work. Of the 610 recognized extant and fossil genera, 588 are placed at least …

The Arthropoda is here estimated to have 1,302,809 described species, including 45,769
fossil species (the diversity of fossil taxa is here underestimated for many taxa of the …

18. After Walter et al.(2009); we regret to note here that the data were not checked by a
specialist. 19. HM André of Belgium (not M. André of France). 20. Based on Fuangarworn & …

Chelicerata probably appeared during the Cambrian period. Their precise origins remain
unclear, but may lie among the so-called great appendage arthropods. By the late Cambrian …

Six species of harvestman (Arachnida: Opiliones) are documented from the Eocene Rovno
amber in Ukraine. From the suborder Eupnoi we record Caddo dentipalpus (CL Koch & …

The occurrence of arthropods in amber exclusively from the Cretaceous and Cenozoic is
widely regarded to be a result of the production and preservation of large amounts of tree …

Despite their ecological importance and diversity, spiders (Arachnida: Araneae) are
underrepresented in conservation policies in comparison to other groups. We review all …