MacKenzie, D.B. xxxx. Studies For Students: Sedimentary Features of Alameda Avenue Cut, Denver, Colorado. The Mountain Geologist, 5(1): 3 - 13.

Matsukawa, Masaki & Obata, Ikuwo 1985. Dinosaur Footprints and other Indentation in the Cretaceous Sebayashi Formation, Sebayashi, Japan. Bull. Nat. Sci. Mus., 11(1): 9 - 36.

McAllister, J. A. 1989. Dakota Formation tracks from Kansas, implications for the recognition of tetrapod subaqueous traces, pp. 343-348. In D. D. Gillette & M. G. Lockley, (Eds.) Dinosaur Tracks and Traces. Cambridge University Press. Cambridge, England; New York.

McKee, Edwin D. 1944. Tracks That Go Uphill. Plateau, 16(4): 61 - 72.

McKee, Edwin D. 1947. Experiments on the Development of Tracks in Fine Cross-Bedded Sand.Journal of Sedimentary Petrology, 17(1): 23 - 28.

McLearn, F.H. 1931. Environment of dinosaur tracks in the Peace River Canyon. Bull. Geol. Soc. Amer., 42: 362 (abstract).

Mehl, M. G. 1931. Additions to the vertebrate record of the Dakota Sandstone. American Journal of Science, 21: 441-452.

Meyer, C.A., Lockley, M.G., Robinson, J.W. & Santos, V.F. 1994. A comparison of well-preserved sauropod tracks from the Late Jurassic of Portugal and the Western United States: evidence and implications. Gaia: Revista de Geociencias, Museu Nacional de Historia Natural, Lisbon, Portugal, 10: 57 - 64.

Miller, F. 1977. Biostratigraphic correlation of the Mesaverde Group in southwestern Wyoming and northwestern Colorado, pp. 117-137. In Veal, H. (ed.), Exploration frontiers of the central and southern Rockies. Rocky Mountain Association of Geologists Symposium.

Milne, David H. & Schafersman, Steven D. 1983. Dinosaur tracks, erosion marks and midnight chisel work (but no human footprints) in the Cretaceous Limestone of the Paluxy River Bed, Texas. Journal of Geological Education, 1983, 31: 111 - 123.

Moratalla, J. J., Garcia-Mondejar, J., Santos, V.F., Lockley, M.G., Sanz, J.L. & Jimenez, S. 1994. Sauropod Trackways from the Lower Cretaceous of Spain. Gaia: Revista de Geociencias, Museu Nacional de Historia Natural, Lisbon, Portugal, 10: 75 - 84.

Moratalla, J. J., Sanz, J.L. & S. Jimenez 1988. Multivariate analysis on Lower Cretaceous dinosaur footprints, discrimination between ornithopods and theropods. Geobios, 21: 395 - 408.

Moratalla, J. J., Sanz, Jose L. & S. Jimenez 1994. Dinosaur tracks from the Lower Cretaceous of Regumiel de la Sierra (province of Burgos, Spain): inferences on a new quadrupedal ornithopod trackway.Ichnos, 3: 89 - 97.

Mossman, D.J. & Sarjeant, W.A.S. 1983. The footprints of extinct animals. Sci. Amer., 248 (1): 74 - 85.