Early Devonian brachiopods of Oklahoma /

by Amsden, Thomas William
Published 1963

Silurian stratigraphy of northeastern Oklahoma /

by Amsden, Thomas William
Published 1965

Stratigraphy of the Frisco and Sallisaw formations (Devonian) of Oklahoma.

by Amsden, Thomas William
Published 1961

Hunton Group (Late Ordovician, Silurian, and Early Devonian) in the Arkoma Basin of Oklahoma /

by Amsden, Thomas William
Published 1980

Brachiopods from the Turkey Creek limestone (Early Devonian) Marshall County, southern Oklahoma /

by Amsden, Thomas William
Published 1985

Late Ordovician and early Silurian articulate brachiopods from Oklahoma, southwestern Illinois, and eastern Missouri /

by Amsden, Thomas William
Published 1974

Upper Bromide Formation and Viola Group (Middle and Upper Ordovician) in eastern Oklahoma.

Published 1983

Late Ordovician-Early Silurian strata in the central United States and the Hirnantian stage /

by Amsden, Thomas William
Published 1986

Articulate brachiopods of the Quarry Mountain Formation (Silurian), eastern Oklahoma /

by Amsden, Thomas William
Published 1978

Late Ordovician through early Devonian annotated correlation chart and Brachiopod range charts for the Southern Midcontinent region, U.S.A., with a discussion of Silurian and Dev...

by Amsden, Thomas William
Published 1988

Stratigraphy and paleontology of the Hunton group in the Arbuckle Mountain region.

by Amsden, Thomas William
Published 1957