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First Dinosaurs from Saudi Arabia

Author

Listed:
  • Benjamin P Kear
  • Thomas H Rich
  • Patricia Vickers-Rich
  • Mohammed A Ali
  • Yahya A Al-Mufarreh
  • Adel H Matari
  • Abdu M Al-Massari
  • Abdulaziz H Nasser
  • Yousry Attia
  • Mohammed A Halawani

Abstract

Dinosaur remains from the Arabian subcontinent are exceedingly rare, and those that have been documented manifest indeterminate affinities. Consequently the discovery of a small, but diagnostic, accumulation of elements from Campanian-Maastrichtian (∼75 Ma) deposits in northwestern Saudi Arabia is significant because it constitutes the first taxonomically identifiable dinosaur material described from the Arabian Peninsula. The fossils include a series of possible lithostrotian titanosaur caudal vertebrae, and some isolated theropod marginal teeth that share unique character states and metric parameters (analyzed using multivariate statistical methods) with derived abelisaurids – this is the first justifiable example of a non-avian carnivorous dinosaur clade from Arabia. The recognition of titanosaurians and abelisaurids from Saudi Arabia extends the palaeogeographical range of these groups along the entire northern Gondwanan margin during the latest Cretaceous. Moreover, given the extreme paucity of coeval occurrences elsewhere, the Saudi Arabian fossils provide a tantalizing glimpse into dinosaurian assemblage diversity within the region.

Suggested Citation

  • Benjamin P Kear & Thomas H Rich & Patricia Vickers-Rich & Mohammed A Ali & Yahya A Al-Mufarreh & Adel H Matari & Abdu M Al-Massari & Abdulaziz H Nasser & Yousry Attia & Mohammed A Halawani, 2013. "First Dinosaurs from Saudi Arabia," PLOS ONE, Public Library of Science, vol. 8(12), pages 1-10, December.
    • Handle: RePEc:plo:pone00:0084041
    DOI: 10.1371/journal.pone.0084041
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