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The Dlx gene complement of the leopard shark, Triakis semifasciata, resembles that of mammals: implications for genomic and morphological evolution of jawed vertebrates. Genetics, 169(2), 807–817
DOI: 10.1534/genetics.104.031831

Stock, D.W. & Powers, D.A. (1998)
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Stock, D.W. & Powers, D.A. (1995)
The cDNA sequence of the lactate dehydrogenase-A of the spiny dogfish (Squalus acanthias): corrections to the amino acid sequence and an analysis of the phylogeny of vertebrate lactate dehydrogenases. Molecular Marine Biology and Biotechnology, 4(4), 284–294

Stock, D.W. & Whitt, G.S. (1994)
Molecular phylogeny of gnathostome fishes [Abstract]. American Elasmobranch Society 10th Annual Meeting, 2.–8. June 1994, University of Southern California, Los Angeles