RONALD J. BUTA, JACK C. PASHIN, NICHOLAS J. MINTER, and DAVID C. KOPASKA-MERKEL, 2013, ICHNOLOGY AND STRATIGRAPHY OF THE CRESCENT VALLEY MINE: EVIDENCE FOR A CARBONIFEROUS MEGATRACKSITE IN WALKER COUNTY, ALABAMA, in Lucas, S. G. et al., eds, Carboniferous-Permian transition, New Mexico Museum of Natural History and Science Bulletin 60. p. 42-56.
Kopaska-Merkel, D. C., and Buta, R. J., 2013, Field-Trip Guidebook to the Steven C. Minkin Paleozoic Footprint site, Walker County, Alabama, in Lucas, S. G. et al., eds, Carboniferous-Permian transition, New Mexico Museum of Natural History and Science Bulletin 60, 30 p.
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