Dean, M.N. & Ramsay, J.B. & Schaefer, J.T. (2008)
Tooth reorientation affects tooth function during prey processing and tooth ontogeny in the lesser electric ray (Narcine brasiliensis, Olfers, 1831). Zoology, 111(2), 123–134
DOI: 10.1016/j.zool.2007.05.004

Schaefer, J.T. (2005)
Structural properties of calcification in batoid elasmobranch cartilage [Abstract]. American Elasmobranch Society 21th Annual Meeting, Tampa, Florida

Dean, M.N. & Schaefer, J.T. (2005)
Patterns of growth and mineralization in elasmobranch cartilage [Abstract]. Experimental Biology 2005 and XXXV International Congress of Physiological Sciences, Abstract 199.5

Schaefer, J.T. & Summers, A.P. (2005)
Batoid wing skeletal structure: novel morphologies, mechanical implications, and phylogenetic patterns. Journal of Morphology, 264(3), 298–313
DOI: 10.1002/jmor.10331

Schaefer, J.T. (2003)
Variation in morphology and function of batoid wing skeletal elements [Abstract]. American Elasmobranch Society 19th Annual Meeting, Manaus, Brazil