Treatise on invertebrate paleontology
by Geological Society of America, Clark, David L., Robinson, R. A., Wright, C. W., Calloman, J. H., Furnish, William M., Hill, Dorothy, Rigby, J. Keith, Teichert, Curt, Williams, Alwyn, Whittington, H. B., Howarth, M. K., Feist, Monique, Carpenter, F. M.
Treatise on invertebrate paleontology
by Wright, C. W., Calloman, J. H., Howarth, M. K.
Mollusca
by Wright, C. W., Howarth, M. K., Callomon, J. H.
fromTreatise on invertebrate paleontology
Treatise on invertebrate paleontology
by Wright, C. W., Calloman, J. H., Howarth, Michael K.
Treatise on invertebrate paleontology
by Geological Society of America, Clark, David L., Robinson, R. A., Wright, C. W., Calloman, J. H., Furnish, William M., Hill, Dorothy, Rigby, J. Keith, Teichert, Curt, Williams, Alwyn, Carpenter, F.M, Whittington, H. B., Howarth, M. K., Feist, Monique