Paleontological Sample - Microfossil Number: 12P-703 Formation: Ion Common Name: Bryozoa Scientific Name: Cyphotrypa cf. C. pachymuralis Locality: Exposure on U.S. Highway 52, approximately 1 mile north of Guttenburg, Iowa; Guttenburg (type section) and Ion Formations. = Loc. 3 of Cir. 326.
Summary
Paleontological Sample - Microfossil Number: 12P-703 Formation: Ion Common Name: Bryozoa Scientific Name: Cyphotrypa cf. C. pachymuralis Locality: Exposure on U.S. Highway 52, approximately 1 mile north of Guttenburg, Iowa; Guttenburg (type section) and Ion Formations. = Loc. 3 of Cir. 326.