Silurian-lower Devonian Conodont Sequence In The Roberts Mountains Formation Of Central NevadaGilbert Klapper and M. A. Murphy1974PDF6.2 MB
An Early Middle Eocene Flora from the Yellowstone-Absaroka Volcanic Province, Northwestern Wind River Basin, WyomingCharles R. Givens, Gilbert Klapper & 3 more1974PDF9.7 MB
Paleozoic Sequence Stratigraphy, Biostratigraphy, and BiogeographyJ. G Johnson, Gilbert Klapper & 3 more1997PDF49 MB
Silurian And Devonian Graptolites Of Central Nevada (university Of California Publications In Geological Sciences, Vol. 110)Gilbert Klapper, John Paul Platt & 3 more1975PDF8.0 MB