|Name||Mississippi, Devonian, and Ordovician rocks, undivided|
|Geologic age||Mississippi; Devonian; and Ordovician|
Sedimentary > Chemical > Novaculite (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Chemical > Chert (Bed)
|Comments||on west side of Solitario Uplift (southeast edge of Presidio Co.) includes Caballos Novaculite and Maravillas Fm.; in Tinaja Mtns (south edge of Marathon anticlinorium) includes various combinations of Caballos Novaculite, Maravillas Fm., Woods Hollow Shale, Fort Pena Fm., and upper part of Marathon Limestone.|
|Stratigraphic units||Caballos Novaculite, Maravillas Formation, Caballos Novaculite, Maravillas Formation, Woods Hollow Shale, Fort Pena Formation, and Marathon Limestone|
Bureau of Economic Geology, 1979, Emory Peak--Presidio Sheet, Geologic Atlas of Texas, University of Texas at Austin.
Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000.