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1. 1. Disparity of Early Cretaceous Lamniformes sharks

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Fredrik Söderblom; [2015]
   Keywords : Lamniformes; disparity; Early Cretaceous; morphology; morphometric; Lamniformes; disparitet; tidig krita; morfologi; morfometri;

   Abstract : The geological range of lamniform sharks stretches from present day species such as Carcharodon carcharias (great white shark) back to the at the moment oldest undoubted fossil finds during the Early Cretaceous. In this paper a geometric morphometric analysis was performed on images of Early Cretaceous lamniform teeth collected from published literature in order to examine the change in disparity (range of morphological variation within a group) throughout the time period. READ MORE