Silurian and Devonian Stratigraphy, Southeastern Arizona and Southwestern New Mexico
No representatives of the Silurian system are known in southeastern Arizona, but they are present in southwestern New Mexico. Middle and Upper Devonian rocks are present within southeastern Arizona but the Lower Devonian section is missing.
Pye, W.D. 1959. Silurian and Devonian stratigraphy, southeastern Arizona and southwestern New Mexico. In Southern Arizona Guidebook II, edited by L.A. Heindl, pp. 25-30. Tucson: Arizona Geological Sociey.
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