A new crested maniraptoran dinosaur from the Santana Formation (Lower Cretaceous) of Brazil

@article{Martill1996ANC,
  title={A new crested maniraptoran dinosaur from the Santana Formation (Lower Cretaceous) of Brazil},
  author={David M. Martill and Arthur R. I. Cruickshank and Eberhard Frey and Philip G. Small and M. J. Clarke},
  journal={Journal of the Geological Society},
  year={1996},
  volume={153},
  pages={5 - 8}
}
The skull of a new, and highly unusual crested dinosaur with an elongate rostrum is the first dinosaur to be named from the Santana Formation of NE Brazil. Irritator challengeri gen. et sp. nov was most likely a maniraptoran dinosaur, but its affinities to other maniraptorans remain to be established. Unique features for Irritator include the pattern of tooth replacement, a highly reduced supratemporal fenestra, extreme lateral compression of the rostrum and a saggital crest comprised of the… 

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