ABSTRACT A phylogenetic analysis of the two-clawed spiders grouped in Dionycha is
presented, with 166 representative species of 49 araneomorph families, scored for 393 …

Over the last three decades, the fossil record of spiders has increased from being previously
biased towards Tertiary ambers and a few dubious earlier records, to one which reveals a …

El libro tiene una estructura tan simple como su título. Tras unos capítulos iniciales
introductorios, siguen los de claves de identificación y 107 subcapítulos dedicados cada …

Fossil spiders have not been fully cataloged since Bonnet's Bibliographia Araneorum and
are not included in the current Catalog. Since Bonnet's time there has been considerable …

South America is the fourth largest continent on the planet; its birds, mammals, and
amphibian's biodiversity is relatively well known, but no outright assessment of the continent …

Although the earliest arachnids were apparently marine, arachnid diversity has been
dominated by terrestrial forms from at least the Devonian. Even though arachnid fossils are …

This study presents a new phylogeny of erigonine spiders with emphasis on genera from the
Neotropics. Thirty‐nine exemplar taxa representing mostly Neotropical genera were added …

The morphology of the respiratory system of basal araneomorph spiders, the Haplogynae
and of Entelegynae with female haplogyne genitalia, is reviewed. The homology of cuticular …

Filistatids, the crevice weavers, are an ancient family of cribellate spiders without extant
close relatives. As one of the first lineages of araneomorph spiders, they present a …

A check list of the Araneae type specimens deposited in the Museu Nacional, Universidade
Federal do Rio de Janeiro, is given, including also all the type specimens of species …