New hemigaleid shark from the late Eocene of Wadi Al-Hitan, Egypt

A new species of hemigaleid shark, distinguished by its highly specialized dentition with pronounced dignathic heterodonty, has been identified from the late Eocene deposits of Wadi Al-Hitan (Whale Valley) in Egypt. This discovery contributes to our understanding of the evolutionary history and diversity of carcharhiniform sharks during this period. The research employed detailed analysis of fossilized teeth to characterize the new species, providing insights into its dental morphology and phylogenetic relationships within the Hemigaleidae family.

Underwood, C. J., & Ward, D. J. (2011). New hemigaleid shark from the late Eocene of Wadi Al-Hitan, Egypt. Journal of Vertebrate Paleontology, 31(3), 707–711. https://doi.org/10.1080/02724634.2011.563763