Statistics
Publications
30
Citations
1.2K
H-Index
18
Active since
1938
James M. Schopf is an author at United States Geological Survey specializing in natural sciences, earth sciences, and botany.
Publications per year
1938–1980
30
30
James M. Schopf · Review of Palaeobotany and Palynology · 1975 · 311 citations
Petrified Peat from a Permian Coal Bed in Antarctica
James M. Schopf · Science · 1970 · 64 citations
An unusual osmundaceous specimen from Antarctica
James M. Schopf · Canadian Journal of Botany · 1978 · 56 citations
1–5 of 30