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Classification and Evolution of Ornithopod Dinosaurs

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Abstract

ALTHOUGH I agree with the main themes of Thulborn on the origin of ornithischian dinosaurs1–3, I disagree4–6 with the current classification of the family Hypsilophodontidae7–8, in respect to premaxillary teeth as a diagnostic feature, cheeks, cheek teeth and locomotor capabilities.

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References

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Authors and Affiliations

  1. Department of Biology, University of Bridgeport, Bridgeport, Connecticut, 06602

    P. M. GALTON

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  1. P. M. GALTON
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GALTON, P. Classification and Evolution of Ornithopod Dinosaurs. Nature 239, 464–466 (1972). https://doi.org/10.1038/239464a0

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