Fossil age data and molecular sequences are increasingly combined to establish a
timescale for the Tree of Life. Arthropods, as the most species-rich and morphologically …

Morphology has traditionally played a pivotal role in animal phylogeny since the first
evolutionary biologists began to decipher the animal tree of life. In recent times, however …

Deciphering the evolutionary relationships of Chelicerata (arachnids, horseshoe crabs, and
allied taxa) has proven notoriously difficult, due to their ancient rapid radiation and the …

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 …

Micro-computed tomography (micro-CT or microtomography) is a non-destructive imaging
technique using X-rays which allows the digitisation of an object in three dimensions. The …

Arachnida is an exceptionally diverse class in the Arthropoda, consisting of 20 orders and
playing crucial roles in the terrestrial ecosystems. However, their interordinal relationships …

Arachnids are an important group of arthropods. They are: diverse and abundant; a major
constituent of many terrestrial ecosystems; and possess a deep and extensive fossil record …

Opiliones are iconic arachnids with a Palaeozoic origin and a diversity that reflects ancient
biogeographic patterns dating back at least to the times of Pangea. Owing to interest in …

The science of phylogenetics, and specially the subfield of molecular systematics, has
grown exponentially not only in the amount of publications and general interest, but also …

Gonyleptoidea, largely restricted to the Neotropics, constitutes the most diverse superfamily
of Opiliones and includes the largest and flashiest representatives of this arachnid order …