1.
Annotated Synopsis of Paleozoic Fossil Spores : And the Definition of Generic Groups; Report...
by Schopf, James Morton 1911-,...
ISBN: 9781015233041
List Price: $12.95
2.
Pteridosperm Male Fructifications; American Species of Dolerotheca, with Notes Regarding Cer...
by Schopf, James Morton 1911-
ISBN: 9781014104113
3.
Contributions to Pennsylvanian Paleobotany Mazocarpon Oedipternum, Sp. Nov. and Sigillarian ...
by Schopf, James Morton 1911-
ISBN: 9781013466175