1. Stratigraphic distribution of species of the megaspore genus Minerisporites in North America Author/Creator: Tschudy, Robert H., author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1976 Resource Type: Book Access & Availability: Loading
2. Stratigraphic distribution of species of the megaspore genus Minerisporites in North America : taxonomy, stratigraphic ranges, and facies significance of Minerisporites megaspores Author/Creator: Tschudy, Robert H. Publication/Creation: Washington : U.S. Govt. Print. Off, 1976 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 737-743. Access & Availability: Loading
3. Two new pollen genera (Late Cretaceous and Paleocene) with possible affinity to the Illiciaceae Author/Creator: Tschudy, Robert H., author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1970 Resource Type: Book Access & Availability: Loading
4. Two new pollen genera (Late Cretaceous and Paleocene) with possible affinity to the Illiciaceae, Author/Creator: Tschudy, Robert H. Publication/Creation: Washington : U.S. Govt. Print. Off, 1970 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 642-644. Access & Availability: Loading