Anderson, Philip S.L; Westneat, Mark (28 November 2006). "Feeding mechanics and bite force modelling of the skull of Dunkleosteus terrelli, an ancient apex predator". Biology Letters. pp. 77–80. doi:10.1098/rsbl.2006.0569. PMC2373817. PMID17443970. {{cite web}}: Missing or empty |url= (help)
Anderson, Philip S.L; Westneat, Mark (28 November 2006). "Feeding mechanics and bite force modelling of the skull of Dunkleosteus terrelli, an ancient apex predator". Biology Letters. pp. 77–80. doi:10.1098/rsbl.2006.0569. PMC2373817. PMID17443970. {{cite web}}: Missing or empty |url= (help)
Anderson, Philip S.L; Westneat, Mark (28 November 2006). "Feeding mechanics and bite force modelling of the skull of Dunkleosteus terrelli, an ancient apex predator". Biology Letters. pp. 77–80. doi:10.1098/rsbl.2006.0569. PMC2373817. PMID17443970. {{cite web}}: Missing or empty |url= (help)