Bisaccate pollen grain 2

Citations total:
2
link From To Geolocation Author - title Year
original Conemaugh Monongahela Kentucky Peppers,R.A. Spores in strata of Late Pennsylvanian cyclothems in the Illinois Basin. 1964
original Conemaugh Monongahela Illinois Peppers,R.A. Spores in strata of Late Pennsylvanian cyclothems in the Illinois Basin. 1964