Trackway of a giant Arthropleura from the Upper Pennsylvanian of El Cobre Canyon, New Mexico
— Spencer G. Lucas, Allan J. Lerner, Joseph T. Hannibal, Adrian P. Hunt, and Joerg W. Schneider
We document a giant terrestrial arthropod trackway assigned to Diplichnites cuithensis Briggs, Rolfe and Brannan, 1979 from the nonmarine redbeds of the Cutler Group (Late Pennsylvanian, Missourian?) in El Cobre Canyon, New Mexico, a classic Pennsylvanian-Permian vertebrate fossil locality. The El Cobre trackway is the first occurrence of D. cuithensis in the American Southwest, and, with a width of 38 cm, the largest known trackway of D. cuithensis. The tracks are attributable to Arthropleura, a gigantic terrestrial myriapod-like arthropod. The Late Pennsylvanian age and paleoenvironmental setting of the El Cobre trackway is consistent with most other records of D. cuithensis.
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- Lucas, Spencer G.; Lerner, Allan J.; Hannibal, Joseph T.; Hunt, Adrian P.; Schneider, Joerg W., 2005, Trackway of a giant Arthropleura from the Upper Pennsylvanian of El Cobre Canyon, New Mexico, in: Geology of the Chama Basin, Lucas, Spencer G.; Zeigler, Kate E.; Lueth, Virgil W.; Owen, Donald E., New Mexico Geological Society, Guidebook, 56th Field Conference, pp. 279-282.