Conodonts from the Genesee Formation in western New York.
1981. United States Geological Survey, Professional Paper 1032-B; 66 pp. 1 fig. 31 plts. h.t. 1 fold. diagr. in pocket. Orig. wrps. base of spine worn, otherwise very good, 4to.
Conodonts from the Genesee Formation in western New York. [Devonian]
1981. United States Geological Survey, Professional Paper 1032-B; 66 pp. 1 fig. 31 plts. h.t. 1 fold. diagr. in pocket. Orig. wrps. base of spine just a little worn, otherwise very good, 4to.