Gravisporites sphaerus

Citations total:
23
link From To Geolocation Author - title Year
details Early Stephanian Czechoslovakia KalibovЎ,M. Spores from the Upper Red Formation (Late Paleozoic) in the Klado-Rakovnik Basin and beneath the Bohemian Cretaeous. 1970
details Missourian Texas Gupta,S. Miospores from the Desmoinesian-Missourian boundary Formations of Texas and the age of the Salesville Formation 1970
original Stephanian B Stephanian C USA Clendening,J.A. Sporological evidence on the geological age of the Dunkard strata in the Appalachian Basin. 1970
details Late Westphalian B Early Westphalian C France(Lorraine) Loboziak,S. The micro and megaspores of the western part of the northern Coal Basin of France. 1971
details Desmoinesian Early Missourian Iowa Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa 1986
details Late Pennsylvanian West Virginia Kosanke,R.M. Palynological analyses of Upper Pennsylvanian Coal Beds and adjacent strata from the proposed Pennsylvanian system stratotype in West Virginia 1988