SUBPHYLUM TRILOBITOMORPHA (Tri, three + lobes, lobes)

saadia August 5, 2014 0 Comments

SUBPHYLUM TRILOBITOMORPHA (Tri, three + lobes, lobes) Members of the subphylum Trilobitomorpha were dominant in the oceans from the Cambrian period (600 million years ago) to the Carboniferous period (345…