Documents Paleozoic Life Ch 12 & 13 This artistic diorama models the living Environment for the Burgess

Paleozoic Life Ch 12 & 13 This artistic diorama models the living Environment for the Burgess shale organisms Visible Life In the Cambrian system of rocks, a large number…

Documents Figure 16.1

Figure 16.1 Early jawless fishes: (a) Sacabambaspis from the Mid Ordovician of Brazil, the oldest well-preserved fish; (b) the osteostracan Hemicyclaspis from the Devonian;…