Contributions to Pennsylvanian paleobotany Mazocarpon oedipternum, sp. nov. and Sigillarian relationships,
Schopf, James Morton, 1911-
Contributions to Pennsylvanian paleobotany Mazocarpon oedipternum, sp. nov. and Sigillarian relationships, by James M. Schopf ... Printed by authority of the state of Illinois. - Urbana, Ill., 1941. - 53p. incl.illus.,6pl. 25cm. - Illinois. State geological survey. Report of investigations no. 75 .
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.
"References": p.38-40.
gs 42000051
Paleobotany--Pennsylvanian.
Mazocarpon.
Paleobotany--Illinois.
QE971 / .S3
567/.9
Contributions to Pennsylvanian paleobotany Mazocarpon oedipternum, sp. nov. and Sigillarian relationships, by James M. Schopf ... Printed by authority of the state of Illinois. - Urbana, Ill., 1941. - 53p. incl.illus.,6pl. 25cm. - Illinois. State geological survey. Report of investigations no. 75 .
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.
"References": p.38-40.
gs 42000051
Paleobotany--Pennsylvanian.
Mazocarpon.
Paleobotany--Illinois.
QE971 / .S3
567/.9