Johanson, Z. & Boisvert, C. & Maksimenko, A. & Currie, P. & Trinajstic, K. (2015)
Development of the Synarcual in the Elephant Sharks (Holocephali; Chondrichthyes): Implications for Vertebral Formation and Fusion.
PLoS ONE, 10(9), Article e0135138 DOI: 10.1371/journal.pone.0135138