Aulacopleuroidea is a superfamily of trilobites. There are 46 species of Aulacopleuroidea, in 13 genera and 2 families. It includes groups like Rorringtoniidae and Brachymetopidae.
Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry