Paleogeographic Studies in Northeastern Sonora by Imlay, Ralph W - 1939

United States Department of the Interior, 1967. Paperback. Used - Very Good. Washington: GPO, 1967. 105 pages. 16 plates, 18 figures, maps. Bibliography. 11.5 x 9", paperback. VG.

The Geological Society of America, September 1952. Staple Bound. Very Good - Cash. Minor rubbing and edge wear to cover, with light reader wear to pages. Minor soiling. Still great condition. Stock photos may not look exactly like the book.

The Bulletin of the American Association of Petroleum Geologists, 1944. Paperback. Good. Paperback in good condition. Pp. 1077-1195. Volume 28, No. 8, August 1944. B & W maps. Occasional underlining and notations in the margins. Some light cover wear.

U. S. Geological Survey, 1953. paperback. about very good condition with a pen name on the front. shipping via USPS

Saddle-stitched binding remains sound. Clean, unmarked interior. Light to moderate shelf-wear, including some very subtle damp staining and areas of light creasing. Includes lots of B&W plates. Bibliography: pp. 53– 55. Natural History.

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1965. Soft cover. Description and illustrations of cephalopods of Middle Juassic (middel Bajocian)age. 61 pages with maps, tables, and references, plus all 29 plates present in the rear. Bound in original gray stiff paper covers printed in black. Signature of invertebrate paleontologist on the front cover. A near fine copy.

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1965. Soft cover. Description and illustrations of cephalopods of Middle Juassic (middel Bajocian)age. 61 pages with maps, tables, and references, plus all 29 plates present in the rear. Bound in original gray stiff paper covers printed in black. A fine copy.

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1931. Hardcover. 96 pages with tables, photographic plates, foldouts, references and index. All plates present. Library binding of tan buckram with lettering on the spine in gilt. Library plate on the front paste-down endpaper, withdrawn stamp on the front free endpaper, and call numbers on several pages. No library pockets, other labels or markings were ever present. An about fine copy.

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1982. Soft cover. Marine Waters invaded Montana in late Callovian time, advanced southward across Wyoming in early Oxfordian time and persisted in Montana during late Oxfordian time. 44 pages with map, tables, references and index, plus the twenty-six plates bound in the rear. Bound in original tan stiff paper covers with printing in dark brown. New Mexico Bureau of Mines stamp on the front cover. A near fine copy.

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1979. Soft cover. Marked rapid lateral changes in lithology, fossil content, and thickness of the Stump Formation are due principally to erosion associated with the Cretaceous (K) and Jurassic (J-4) unconformities. 25 pages with maps, photographs, sections, tables, and references. Bound in original tan stiff paper covers with printing in dark brown. Library stamp on the front cover. No other library markings, plates or pockets were ever present. A fine copy.