Silberling N. J. and Nichols K. M. 1982 MIDDLE TRIASSIC MOLLUSCAN FOSSILS OF BIOSTRATIGRAPHIC SIGNIFICANCE FROM THE HUMBOLDT RANGE NORTHWESTERN NEVADA U. S. Geological Survey Professional Paper #1207 4to, in wraps as issued, some wear, stamp to wrap, contents good with 77 pp., 38 plates of fossils, mostly Ammonites and 49 figures. A classic treatise on ammonite paleontology and biostratigraphy.  Buyer/highest bidder pays shipping, payments via Ebay preferred. Items shipped within 5 business days from receipt and clearance of payment, tracking will be posted. For more geology paleontology gold silver and other ore mining mineralogy and related geoscience and natural history books bulletins atlases and maps, please browse my other auctions.

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