PLATE 2

 

FIGURES

 

1, 3. Eucrassatella (Hybolophus) subgibbosus (GD. Hanna)

Holotype CAS 1818 (682.02, new number). Imperial Formation, California, Miocene and Pliocene.

 

2,13. Crassatella lillisi (Dickerson)

Holotype UCMP 11797 (x2.0). Cerros Shale Member, Lodo Formation, California. Paleocene.

 

4, 6, 9, 10, 16, 17. Crassatella uvasana uvasana Conrad

Astarte semidentata Cooper.

4. Syntype CAS 66541.01 (x 1.5). Rose Canyon Shale, Califonia. Eocene.

5, 10. Syntype CAS 66541.02 (x 1.5). Rose Canyon Shale, California, Eocne.

6. Syntype CAS 66541.04 (x 1.5). Rose Canyon Shale, California. Eocene.

9. Syntype CAS 66541.03 (x1.5). Rose Canyon Shale, California. Eocene.

Crasatella grandis Gabb.

16, 17. Lectotype UCMP 31449. Tejon Formation, California. Eocene.

 

7, 8. Cassatella weaveri (Clark)

Holotype UCMP 30831 (x 2.0). Markley Sandsstone Member, Kreyenhagen Formation, California. Eocene.

 

11, 14. Crassatella studleyi (Dickerson)

Holotype UCMP 32756. Martinez Formation, California. Palocene.

 

12. Crassatella compacta Gabb

Crassatellites branneri Waring, Holotype CAS 160 (61919.03, new number). Martinez Group, California. Paleocene.

 

15. Crassatella claytonensis (Dickerson)

Syntype UCMP 11669. Martinez Formation, California. Paleocene.