Kues B.S., Batten R.L. (2001). Middle Pennsylvanian gastropods from the Flechado Formation, north-central New Mexico. Journal of Paleontology. 75(1, supp):1-95.
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Kues B.S., Batten R.L.
2001
Middle Pennsylvanian gastropods from the Flechado Formation, north-central New Mexico.