Conodonts from the Menard formation (Chester series) of the Illinois Basin /
by Carl B. Rexroad and Robert S. Nicoll.
- Bloomington, Ind. : Printed by authority of the State of Indiana, 1965.
- 28 p. : illus., 2 plates ; 23 cm.
- Geological Survey bulletin (Bloomington, Ind.) ; no. 35 .
With : Crinoids from the Glen Dean limestone (middle Chester) of southern Indiana and Kentucky / by Alan S. Horowitz. Bloomington, Ind. : Printed by authority of the State of Indiana, 1965. Bound together subsequent to publication.