. Smithsonian miscellaneous collections . men, x 2, showing notch andrevolving lines, hypotype, No. 15207a, Permian, Vermil-lion Creek, Uinta Mountains, Utah. B. Warthia, species A 86 Figs. 9-12. 9-11, Apertural, dorsal, and side views, respectively, of a fairly well-preserved individual, No. 116632a, x IJ 12,apertural view of the same specimen, x 2, showing the aperture ingreater detail. Highest Permian, loc. 8o6t. C. Orthonychia, species A 90 Fig. 13. Posterior view of an incomplete specimen, No. 116629, X I, Anidanthtis zone, loc. 8o6m. D. View looking northeast f
. Smithsonian miscellaneous collections . men, x 2, showing notch andrevolving lines, hypotype, No. 15207a, Permian, Vermil-lion Creek, Uinta Mountains, Utah. B. Warthia, species A 86 Figs. 9-12. 9-11, Apertural, dorsal, and side views, respectively, of a fairly well-preserved individual, No. 116632a, x IJ 12,apertural view of the same specimen, x 2, showing the aperture ingreater detail. Highest Permian, loc. 8o6t. C. Orthonychia, species A 90 Fig. 13. Posterior view of an incomplete specimen, No. 116629, X I, Anidanthtis zone, loc. 8o6m. D. View looking northeast from El Antimonio mining 14. The hills in the background are the Monos Hills, which form a crescent. The gap in the center is at about the maximum curvatureof the crescent. The hills on the right extend to the east, those onthe left to the northwest. Mill Hill is at the end of the latter settlement in the foreground is underlain by Triassic rocks. PLATES SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 119, NO. 2, PL. I.
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