Caddoidea is a superfamily of harvestmen. There are 2 species of Caddoidea, in 1 genus and 1 family. This superfamily has been around since the priabonian age. It includes groups like Caddidae.
Definition: The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.