Majoidea is a superfamily of decapods. There are 1062 species of Majoidea, in 218 genera and 7 families. This superfamily has been around since the upper cretaceous epoch. It includes groups like Kelp Crabs And Spider Crabs, Oregoniidae, and Inachoididae. They rely on drag powered swimming to move around.
EOL has data for 23 attributes, including: