Chelicerata (Spiders) is a subphylum of arthropods. There are 75034 species of Spiders, in 7868 genera and 903 families. This subphylum has been around since the phanerozoic eon. It includes groups like Sea Scorpions, Sea Spiders, and Arachnids.
EOL has data for 11 attributes, including:
The environments in which many spiders species are known to live. Select an environment to see its spiders species checklist.