New agnathous fishes from the Pennsylvanian of Illinois
By: David Bardack -- and Eugene S. Richardson, Jr. --
Contributors: Richardson, Eugene Stanley, 1916- joint author.
Series: Fieldiana -- v. 33, no. 26; Field Museum of Natural History. Publication -- 1261; Publication (Field Museum of Natural History) -- 1261.
Publisher: Field Museum of Natural History
Published: 1977
Place of publication: Chicago
Subjects: Pipiscius zangerli.; Gilpichthys greenei.; Paleontology -- Pennsylvanian.; Paleontology -- Illinois -- Will County.; Paleontology -- Illinois -- Kankakee County.
Other titles: Agnathous fishes