Paleontology of the Rustler Formation, Culberson County, Texas
Reprinted from Journal of Paleontology, v. 27, no. 5, 1953. The fossils described in this paper substantiate the Permian age of the Rustler formation. The Rustler fauna is largely molluscan and has a Whitehorse aspect. Four species of the Rustler fauna are similar to species from Russian and Indian faunas, suggesting possible correlations with Upper Permian rocks. Environments have had more influence on the fauna than has geologic age, giving the Rustler fauna a striking resemblance to faunas of older Permian rocks which occupied similar biotopes. The Rustler fauna is large and varied, containing 35 species of invertebrates. Because of the fragmentary condition of the fossils, many species are uncertainly identified.
Walter, J. C., Jr., 1953, Paleontology of the Rustler Formation, Culberson County, Texas: The University of Texas at Austin, Bureau of Economic Geology, Report of Investigations No. 19, 24 p.
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The University of Texas at Austin, Bureau of Economic Geology
Report of Investigation