1. Late Ordovician through Early Devonian annotated correlation chart and brachiopod range charts for the southern Midcontinent region, USA, with a discussion of Silurian and Devonian conodont faunas;Amsden T. W.;Oklahoma Geological Survey Bulletin,1988
2. Biometric determination of the evolution of Spathognathodus remscheidensis: a method for precise intrabasinal time correlations in the Northern Appalachians;Barnett S. G.;Journal of Paleontology,1971
3. Late Silurian‐Early Devonian conodonts from the Hunton Group (Upper Henryhouse, Haragan, and Bois d'Arc Formations), South‐Central Oklahoma;Barrick J. E.;Oklahoma Geological Survey Bulletin,1992
4. Early Devonian conodonts from a limestone horizon in the Caballos Novaculite, Marathon Uplift, west Texas
5. The Silurian‐Devonian boundary and the Klonk event in the Frame Formation, subsurface west Texas;Barrick J. E.;Bulletins of American Paleontology,2005