Paleontological Sample - Microfossil Number: 18P-138 Common Name: Conodont Locality: Alton North. Eighty feet of upper St. Louis and 15 to 20 feet of Ste. Genevieve Limestone. For diagram of outcrop showig bed numbers, see Collinson, Swann, & Willman, 1954, fig. 5.
Summary
Paleontological Sample - Microfossil Number: 18P-138 Common Name: Conodont Locality: Alton North. Eighty feet of upper St. Louis and 15 to 20 feet of Ste. Genevieve Limestone. For diagram of outcrop showig bed numbers, see Collinson, Swann, & Willman, 1954, fig. 5.