Stratigraphic distribution of species of the megaspore genus Minerisporites in North America : taxonomy, stratigraphic ranges, and facies significance of Minerisporites megaspores
Stratigraphic distribution of species of the megaspore genus Minerisporites in North America : taxonomy, stratigraphic ranges, and facies significance of Minerisporites megaspores / by Robert H. Tschudy
Series Titles:
Geological Survey professional paper ; 743-E Contributions to paleontology Geological Survey professional paper. Geological Survey professional paper ; 743-E.