2.17: Wade Greenberg-Brand, adapted from image in Mason, J. A., Bettis, A. E., Roberts, H. M., Muhs, D. R., and Joeckel, R. M. (2006), Last glacial loess sedimentary system of eastern Nebraska and western Iowa, AMQUA post-meeting field trip no. 1; in, Guidebook of the 18th Biennial Meeting of the American Quaternary Association, R. Mandel, ed.: Kansas Geological Survey, Technical Series 21
3.3-3.4: Hayden, F. V. (1872), Final Report of the United States Geological Survey of Nebraska and Portions of the Adjacent Territories, Government Printing Office, Washington DC
3.6: Dawson, J. W., Sir (1880), The Chain of Life in Geological Time: A Sketch of the Origin and Succession of Animals and Plants, The Religious Tract Society, London, UK
3.7: Pabian, R. K. (1970), Record in Rock: A Handbook of the Invertebrate Fossils of Nebraska, Conservation and Survey Division, University of Nebraska-Lincoln, Lincoln, NE. Reprinted with permission
3.8 - 3.9: Hayden, F. V. (1872), Final Report of the United States Geological Survey of Nebraska and Portions of the Adjacent Territories, Government Printing Office, Washington DC
3.12: Pabian, R. K. (1970), Record in Rock: A Handbook of the Invertebrate Fossils of Nebraska, Conservation and Survey Division, University of Nebraska-Lincoln, Lincoln, NE. Reprinted with permission
3.13: A) Baird, G.C., and C.E. Brett (1983), Regional Variation and Paleontology of Two Coral Beds in the Middle Devonian Hamilton Group of Western New York, Journal of Paleontology, 57(3): 417 - 446; B) Adapted from image by "Kevmin" [CC-BY-SA-3.0] via Wikimedia Commons
3.14 - 3.15: Rod Feldmann
3.16: A) H. Zell [CC-BY-SA-3.0] via Wikimedia Commons; B) Adapted from image by "Smokeybjb" [CC-BY-SA-3.0] via Wikimedia Commons
3.18: A) and D) Imlay, R.W. (1948), Characteristic marine Jurassic fossils from the Western Interior of the United States, US Geological Survey Professional Paper 214-B, 25 pp., 9 pls.; B) and C) Shimer, H. W., and R. R. Shrock (1944), Index Fossils of North America: A New Work Based on the Complete Revision and Reillustration of Grabau and Shimer's 'North American Index Fossils', MIT Press, Cambridge, MA
3.30: Plummer, Helen Jeanne (1926), Foraminifera of the Midway Formation in Texas, University of Texas Bulletin 2644
3.31: Wade Greenberg-Brand
3.32: Brown, R. W. (1939), Fossil plants from the Colgate member of the Fox Hills sandstone and adjacent strata, USGS Professional Paper 189-I, pp. 239 - 271
3.33: "MCDinosaurhunter" [CC-BY-SA-3.0] via Wikimedia Commons
3.34: A) "EvaK" [Free Art License 1.3] via Wikimedia Commons; B) "Ballista" [CC-BY-SA-3.0] via Wikimedia Commons; C) Adapted from image by Vince Smith [CC-BY-2.0] via Flickr; D) Adapted from image by Connie Ma [CC-BY-SA-2.0] via Wikimedia Commons
3.35: "Anky-man" [CC-BY-SA-3.0] via Wikimedia Commons
3.36: A) The Children's Museum of Indianapolis [CC-BY-SA-3.0] via Wikimedia Commons; Inset: "Kabacchi" [CC-BY-2.0] via Wikimedia Commons
3.37: Rod Feldmann
3.38: Wade Greenberg-Brand
3.39: A) Scott, W. B. (1913), A History of Land Mammals in the Western Hemisphere, Macmillan Company, New York; B) Frank E. Beddard; C) and D) Robert Bruce Horsfall
3.50: Tuthill, S. J. (1963), Mollusks from Wisconsinian (Pleistocene) Ice-Contact Sediments of the Missouri Coteau in Central North Dakota, University of North Dakota Master's Thesis, Grand Forks, ND; reprinted with the permission of Joseph Hartman
6.14: Wade Greenberg-Brand, adapted from image by Lisiecki, L.E. and Rayno, M.E. (2005), A Pliocene-Pleistocene stack of 57 globally distributed benthic δ18O records, Paleoceanography, 20, PA1003, doi:10.1029/2004PA001071
6.15: Wade Greenberg-Brand, adapted from data by NOAA
6.16: USGS
6.17: Wade Greenberg-Brand, adapted from image by Illinois State Geological Survey
6.18: Wade Greenberg-Brand, adapted from image by Mason, J. A., Bettis, A. E., Roberts, H. M., Muhs, D. R., and Joeckel, R. M. (2006), Last glacial loess sedimentary system of eastern Nebraska and western Iowa, AMQUA post-meeting field trip no. 1; In: Guidebook of the 18th Biennial Meeting of the American Quaternary Association, R. Mandel, ed.: Kansas Geological Survey, Technical Series 21
6.19: Wade Greenberg-Brand, adapted from image by Steven Dutch
6.20: Wade Greenberg-Brand
6.21: National Park Service
6.22: Wade Greenberg-Brand, adapted from image by the Montana Natural History Center
7.16: Wade Greenberg-Brand, adapted from image by National Renewable Energy Laboratory
7.17: Geothermal Resources Council [CC-BY-NC-ND-2.0] via Flickr
Coal Box: Jim Houghton
Oil and Gas Box: Jim Houghton
Geothermal Box: Wade Greenberg-Brand
Chapter 8: Soils
8.1-8.2: Wade Greenberg-Brand, adapted from image by USDA NRCS
8.3: Wade Greenberg-Brand
8.4: USDA NRCS
8.5 - 8.11: Andrielle Swaby, adapted from image by USDA
8.12: Wade Greenberg-Brand, adapted from image by Brady, Nyle (1984), The Nature and Properties of Soils (9th edition), Macmillan, New York
8.13: Wade Greenberg-Brand, adapted from image by Mason, J. A., Bettis, A. E., Roberts, H. M., Muhs, D. R., and Joeckel, R. M. (2006), Last glacial loess sedimentary system of eastern Nebraska and western Iowa, AMQUA post-meeting field trip no. 1; In: Guidebook of the 18th Biennial Meeting of the American Quaternary Association, R. Mandel, ed.: Kansas Geological Survey, Technical Series 21
8.14: USDA
8.15: Spencer Cody
8.16: USDA
8.17: USDA NRCS
8.18: Spencer Cody
8.19: Jill Cody
8.20: US Department of the Interior Bureau of Land Management
8.21: "Leaflet" [CC-BY-SA-4.0] via Wikimedia Commons
