Contributions to Pennsylvanian paleobotany Mazocarpon oedipternum, sp. nov. and Sigillarian relationships, by James M. Schopf ... Printed by authority of the state of Illinois.

By: Material type: TextTextSeries: Illinois. State geological survey. Report of investigations ; no. 75Publication details: Urbana, Ill., 1941.Description: 53p. incl.illus.,6pl. 25cmSubject(s): DDC classification:
  • 567/.9
LOC classification:
  • QE971 .S3
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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.

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