1. Angiosperm pollen from the Glen Rose Formation, north-central Texas, U.S.A;Beach;Palynology,1981
2. The spores and pollen of the Potomac Group of Maryland;Brenner;Maryland Department of Geology, Mines and Water Resources Bulletin,1963
3. Middle Cretaceous floral provinces and early migrations of angiosperms;Brenner,1976
4. The stratigraphical palaeontology of the Lower Greensand;Casey;Palaeontology,1961
5. Piedmont and Coastal Plain geology along the Susquehanna Aqueduct, Baltimore to Aberdeen, Maryland;Cleaves;Maryland Geological Survey Report of Investigations,1968