1) Alg 1) American geologic period 2) Anglo-saxon boy name 3) Devonian division 4) Geological subdivision 5) Na geologic epoch 6) Of a Devonian epoch 7) Of a geologic period 8) Of a geologic time 9) Of a geologic time division 10) Of a geological epoch 11) Of a great lake 12) Of a Great Lake period 13) Of a lake area