Systematics and occurrences of Edestus (Chondrichthyes) worldwide and new occurrences from Colorado and Texas. Historical Biology, 24(4), 397–410
DOI: 10.1080/08912963.2012.658569
Ctenacanthus and Other Chondrichthyan Spines and Denticles from the Minturn Formation (Pennsylvanian) of Colorado. Journal of Paleontology, 77(3), 524–535
DOI: 10.1666/0022-3360(2003)077<0524:CAOCSA>2.0.CO;2
Chondrichthyans from the pennsylvanian Minturn Formation of Colorado [Abstract]. Abstr. 9th Internatl. Symp. Early Vertebrates/Lower Vertebrates, Flagstaff, Arizona, USA, May 2000, p. 11.