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.

Johanson, Zerina, Catherine Boisvert, Anton Maksimenko, Peter Currie, e Kate Trinajstic. "Development of the Synarcual in the Elephant Sharks (Holocephali; Chondrichthyes): Implications for Vertebral Formation and Fusion." PLoS One 2015.

Johanson, Zerina, et al. "Development of the Synarcual in the Elephant Sharks (Holocephali; Chondrichthyes): Implications for Vertebral Formation and Fusion." PLoS One 2015.