Upper Bromide Formation and Viola Group (Middle and Upper Ordovician) in eastern OklahomaThomas William Amsden · First published 1983Open the Tome
Hunton Group (Late Ordovician, Silurian, and Early Devonian) in the Arkoma Basin of OklahomaThomas William Amsden · First published 1980Open the Tome
Paleoenvironment of Fitzhugh member of Clarita formation (Silurian, Wenlockian), southern OklahomaThomas William Amsden · First published 1980Open the Tome
Articulate brachiopods of the Quarry Mountain Formation (Silurian), eastern OklahomaThomas William Amsden · First published 1978Open the Tome
Hunton Group, Late Ordovician, Silurian, and Early Devonian in the Anadarko basin of OklahomaThomas William Amsden · First published 1975Open the Tome
Late Ordovician and early Silurian articulate brachiopods from Oklahoma, southwestern Illinois, and eastern MissouriThomas William Amsden · First published 1974Open the Tome
Articulate brachiopods of the St. Clair Limestone (Silurian), Arkansas, and the Clarita Formation (Silurian), OklahomaThomas William Amsden · First published 1968Open the Tome
Silurian stratigraphy of northeastern OklahomaThomas William Amsden · First published 1965Open the Tome
Stratigraphy of the Frisco and Sallisaw formations (Devonian) of OklahomaThomas William Amsden · First published 1961Open the Tome
Catalog of fossils from the Middle and Upper Ordovician of OklahomaThomas William Amsden · First published 1957Open the Tome
Stratigraphy and paleontology of the Hunton group in the Arbuckle Mountain regionThomas William Amsden · First published 1957Open the Tome
Catalog of fossils from the Hunton group, OklahomaThomas William Amsden · First published 1956Open the Tome
Geology and water resources of Garrett CountyThomas William Amsden · First published 1954Open the Tome
Stratigraphy and paleontology of the Brownsport formation (Silurian) of western TennesseeThomas William Amsden · First published 1949Open the Tome
