Roger Weller, geology instructor
wellerr@cochise.edu
brachiopods
Brachiopod-Mold and Cast
Brachiopods
revealed by acid etching:
1
2
3
4
corals
Coral-Acrocyathus:
1
2
3
4
Coral-Syringopora:
3
4
5
6
7
8
9
10
crinoids
Crinoids,
crinoidal hash:
1
2
gastropods
Gastropods:
1
stromatolites