Eryonoidea is a superfamily of decapods. There are 79 species of Eryonoidea, in 22 genera and 5 families. This superfamily has been around since the upper triassic epoch. It includes groups like Palaeopentachelidae, Coleiidae, and Tetrachelidae. They rely on drag powered swimming to move around.
EOL has data for 12 attributes, including: