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SELECTED REFERENCES
<br />Brown, B. 1 938. The dinosaur mystery. Natural History, 41: 190-202, 235.
<br />Gill, J.R. and. Cobban W.A, 1966a; The Red Bird section of the upper Cretaceous Pierre
<br />Shale in Wyoming USGS Prof. Paper 393-A 73p.
<br />Johnson R.C., and May, F., 1980 A study of the Cretacedus-Tertiary unconformity
<br />in the Piceance Creek basin, Colorado; The underlying Ohio Creek Formation
<br />(Upper Cretaceous) redefined as a member of the Hunter Canyon or Mesaverde
<br />Formation: U.S. Geological Survey Bulletin No. 1482-B, 26p.
<br />Lee; W.T., and Knowlton, F.H., 1917, Geology and paleontology of the Raton Mesa
<br />and other regions in Colorado and New Mexico: USGS Prof. Paper 101. 450 p.
<br />Lockley, M. G. 1989a. Summary and prospectus.. in Dinosaur tracks and traces.
<br />Edited by D.D. Gillette and M.G. Lockley. Cambridge University Press, New
<br />York, PP. 41-447
<br />Lockley, M. G. 1986. The paleobiological and paleonenvironmental importance of
<br />dinosaur footprints. Palaios.l;1, pp. 37-47
<br />Lockley, M.G., and Conrad, K. 1989. The paleoenvironmental context, preservation and
<br />• paleoecological significance of dinosaur tracksites in the western USA. in
<br />Dinosaur tracks and traces. Edited by D.D. Gillette and M.G. Lockley. Cambridge
<br />University Press, New York, PP. 121-134
<br />Lockley, M.G., and Jennings, C. 1987. Dinosaur tracksites of western Colorado and
<br />eastern Utah. /n Paleontology and geology of the Dinosaur Triangle. Edited by
<br />W.R. Averett. Museum of western Colorado, Grand.Junction, Co, pp. 8590
<br />Lockley, M.G., and Prince, N.K. 1988. Dinoturbation: a late Mesozoic peak in the
<br />history of substrate trampling by terrestrial vertebrates. Geological Society of
<br />America, Abstracts with Programs, 20: 377.
<br />Lockley, M.G., Young, B.H., and Carpenter, K. 1883. Hadrosaur locomotion and
<br />herding behaviour: evidence from footprints in the Mesaverde Formation, Grand
<br />Mesa Coal Field, Colorado Mountain Geologist, 20: 5-13
<br />Parker, L. R.., and Rowley, Jr., 1989. Dinosaur Footprints iron a Coal Mine in East-
<br />Central Utah... /n Dinosaur tracks and traces. Edited by D.D. Gillette and M.G.
<br />Lockley. Cambridge University Press, New York, PP. 41-447
<br />Stucky, R.K. 1990. Evolution of land mammal diversity in North America during the
<br />Cenozoic. Current Mammalogy 2: 375-432.
<br />• Tedford, R.H. 1970. Principles and practices of mammalian geochronology in
<br />North American Paleontological Convention 2F: 666-703
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