Downs, J.P. & Daeschler, E.B. (2001)
Variation within a large sample of Ageleodus pectinatus teeth (Chondrichthyes) from the Late Devonian of Pennsylvania, U.S.A.
Journal of Vertebrate Paleontology, 21(4), 811–814 DOI: 10.1671/0272-4634(2001)021[0811:VWALSO]2.0.CO;2