|
King, Dunbar & Cloud |
1944 |
Geology and Paleontology of the Permian area northwest of Las Delicias, southwestern Coahuila, Mexico. [King,R.E., Dunbar,C.O., Cloud,P. & Miller,A.K.]
Geological Society of America Special Papers, 52: X + 1-172, 29 text-figs., 45 pls.
|
|
|
Spinosa, Furnish & Glenister |
1970 |
Araxoceratidae, Upper Permian ammonoids, from the Western Hemisphere.
Journal of Paleontology, 44 (4): 730-736, fig.1-3, tab.1, pl.109; Tulsa,Oklahoma.
|
|
|
Wardlaw, Rudine & Nestell |
2000 |
Conodont Biostratigraphy of the Permian Beds at Las Delicias, Coahuila, Mexico.
In: Wardlaw,B.R., Grant,R.E. & Rohr,D.M.: The Guadalupian Symposium, Smithsonian Contributions to the Earth Sciences, 32, 381-392, 10 fig., 1 pl., Washington.
|