ABSTRACT
The skull undergoes a complex developmental process during which strong evolutionary forces shape its morphology. In vertebrates, the skull is important because it encompasses several vital organs such us the brain, the senses, the feeding structures, and a large portion of the respiratory system (Webster and Webster 1974, Kardong 2001, Chai and Maxson 2006). The skull facilitates the gathering of information about the surrounding
1 Unidad de Investigación, Universidad Santo Tomás, Seccional Tunja. Cll. 19 # 11 - 64, Tunja, Boyacá, Colombia.
