Crinoid Studies, Parts III-VII. (III. Apographiocrinus arcuatus, new species from the Missouri Series of Oklahoma; IV. Exocrinus, new genus from the Pennsylvanian of Oklahoma
Rest of title: V. Allosocrinus, a new crinoid genus from the Pennsylvanian of Oklahoma; VI. Allagecrinus copani, new species from the Pennsylvanian of Oklahoma; VII. New species of crinoids from southeastern Kansas).
H.L. Strimple
Pages: 42, 7 pls.
Issue: 133
Year published: 1949