Title: Late Ordovician and early Silurian articulate brachiopods from Oklahoma, southwestern Illinois, and eastern Missouri
First published: 1974
Subjects: Articulata, Fossil, Fossil Articulata, Paleontology
Places: Middle West
Time periods: Ordovician, Silurian
LC classification: QE153 .A2 no. 119, QE797.A65 .A2 no. 119