Exochorhynchus curtis Astafieva-Urbajtis, 1981 Click on image to Go-Back Exochorhynchus curtis Astafieva-Urbajtis, 1981 - clam - Pennsylvanian - Gzhelian Stage
Exochorhynchus curtis Astafieva-Urbajtis, 1981 Click on image to Go-Back
Exochorhynchus curtis Astafieva-Urbajtis, 1981 - clam - Pennsylvanian - Gzhelian Stage