Paleozoic Life Invertebrates. Major invertebrate phyla evolved in the Cambrian Trace fossils common Echinoderms diverse Trilobites, inarticulate brachiopods,
Paleozoic Life
December 7, 2009 BReading Ch. 14 BFinal Exam date: TU, Dec. 15 Material covered: Ch. 13, 14, 15, 16(?) + movie Lab-Created Artificial Pork a Reality, Bacon.
