An unusual dental pathology in a tooth of Spinosaurus (Dinosauria, Theropoda) from the mid-Cretaceous of Morocco

Roy E. Smith, David M. Martill*

*Corresponding author for this work

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A single tooth identified as cf. Spinosaurus sp. from the Ifezouane Formation of the Kem Kem Group of eastern Morocco is noteworthy for a series of extensive palaeopathologies. These include an enhanced lingual curvature to the crown and the development of three deep grooves extending from at least the crown root junction to the apex of the crown. An attenuated carina is present but this does not extend to the crown tip, and neither does it start at the crown base. A wear facet is also present at the tip. This is the first report of external dental pathologies in the tooth of a spinosaurine spinosaurid.

Original languageEnglish
Article number105499
Number of pages6
JournalCretaceous Research
Early online date1 Mar 2023
Publication statusPublished - 1 Jun 2023


  • Cretaceous
  • dental palaeopathology
  • Dinosauria
  • Kem Kem Group
  • Morocco
  • Theropoda

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