Open Paleo

Doctoral thesis

A revision of the Hadrosauridae (Reptilia: Ornithischia) and their evolution during the Campanian and Maastrichtian

Brett-Surman, M. K. (1989)

Citation

Brett-Surman, M. K. (1989). A revision of the Hadrosauridae (Reptilia: Ornithischia) and their evolution during the Campanian and Maastrichtian. 1-272. Doctoral thesis, The George Washington University.

Cited by genera

  • Cionodon

    Finds that none of the type elements permits a diagnosis at any level, and calls Cionodon a nomen dubium.

  • Claorhynchus

    Relocated and examined the type, identifying it as part of a ceratopsian frill and rejecting the hadrosaur reading.

  • Dysganus

    Finds none of the Dysganus teeth diagnostic below family level and all four species nomina dubia.

  • Hypsibema

    Finds none of the elements diagnostic and calls Hypsibema a nomen dubium, questioning its transfer to Sauropoda.

  • Lambeosaurus

    Holds Didanodon never diagnosed, referring its type tentatively to Hypacrosaurus.

  • Mandschurosaurus

    Calls Mandschurosaurus a nomen dubium, its type mostly restored in plaster.

  • Microhadrosaurus

    PhD dissertation; assesses Microhadrosaurus as a nomen dubium.

  • Notoceratops

    Reports the holotype lost and keeps the genus ceratopsian, rejecting a hadrosaurid assignment as circular.

  • Ornithotarsus

    Finds the genus undiagnostic and a nomen dubium, and notes it is not synonymous with Parasaurolophus.

  • Orthomerus

    Treats Orthomerus as a nomen dubium based on a juvenile femur and separates Telmatosaurus from it, reporting that "Steel (1969)" had made Telmatosaurus a junior synonym of Orthomerus.

  • Pteropelyx

    Suggested the Pteropelyx type material is from Corythosaurus, making Pteropelyx a senior synonym.

  • Stephanosaurus

    Records the type species as generically indeterminate.

  • Thespesius

    Finds the type material undiagnostic even at subfamily level and the name a nomen dubium; notes that Lull and Wright (1942) moved the species referred to the genus to Anatosaurus.

  • Trachodon

    Agrees with Lull and Wright (1942) that the name Trachodon is unusable, and calls it a nomen dubium on a single dentary tooth.