Phacopina is a suborder of trilobites. There are 181 species of Phacopina, in 67 genera and 7 families. It includes groups like Prosopiscidae and Diaphanometopidae.
Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
Definition: Component found in mineralized skeletal tissue, (a specialized form of biogenic tissue in which the extracellular matrix is mineralized, and which functions in mechanical and structural support.)