A reanalysis of Acrocanthosaurus atokensis, its phylogenetic status, and paleobiogeographic implications, based on a new specimen from Texas von Harris, Jerald D.

Ardmosteges orchamus new genus, new species, in the Early Pennsylvanian of Oklahoma possible ancestor to the Richthofenoid brachiopods von Sutherland, Patrick K.

Lower Pennsylvanian, Morrowan, ammonoids from the North American midcontinent von Manger, Walter L., Saunders, W. Bruce

Organic buildups in the lower Ordovician (Canadian) of Texas and Oklahoma von Toomey, Donald F., Nitecki, Matthew H.

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Upper Mississippian ammonoids from Arkansas and Oklahoma von Saunders, W. Bruce

New and little known genera and species of vertebrates from the Lower Permian of Oklahoma von Olson, Everett Claire 1910-1993

Articulate brachiopods of the St. Clair Limestone (Silurian), Arkansas, and the Clarita Formation (Silurian), Oklahoma von Amsden, Thomas W.

Upper bromide formation and Viola Group (Middle and Upper Ordovician) in Eastern Oklahoma

Calcareous foraminifers and algae from the type Morrowan (Lower Pennsylvanian) region of northeastern Oklahoma and northwestern Arkansas von Groves, John R.

Echinoderm faunas from the bromide formation, middle ordovician, of Oklahoma

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Late Mississippian and Early Pennsylvanian conodonts, Arkansas and Oklahoma von Lane, Harold Richard, Straka, Joseph J.

Simpson group (middle ordovician) trilobites of Oklahoma von Shaw, Frederick C.

Lower Pennsylvanian ammonoids from the Bloyd formation of Arkansas and Oklahoma von MacCaleb, James A.