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|Additional Physical Format:||Online version:
Schopf, James Morton, 1911-
Contributions to Pennsylvanian paleobotany Mazocarpon oedipternum.
Urbana, Ill., 1941
|Material Type:||Government publication, State or province government publication|
|All Authors / Contributors:||
James Morton Schopf
|Notes:||At head of title: State of Illinois, Dwight H. Green, governor. Dept. of registration and education, Frank G. Thompson, director. Division of the State geological survey, M.M. Leighton, chief, Urbana.|
|Description:||53 pages including illus., 6 plates 25 cm.|
|Series Title:||Report of investigations (Illinois State Geological Survey), no. 75.|
|Responsibility:||by James M. Schopf ... Printed by authority of the state of Illinois.|