Complex sentence: Originally described from a fossil molar as "Pliomastodon cosoensis" by Schultz (1937), it was found in the late Pliocene (Blancan) Coso Formation of California.
Split into simpler sentences: Originally described from a fossil molar as "Pliomastodon cosoensis" by Schultz (1937). It was found in the late Pliocene (Blancan) Coso Formation of California.