A Subadult Specimen of Rubeosaurus ovatus (Dinosauria: Ceratopsidae), with Observations on Other Ceratopsids from the Two Medicine Formation
2011

A Subadult Specimen of Rubeosaurus ovatus and Observations on Other Ceratopsids

Sample size: 3 publication Evidence: moderate

Author Information

Author(s): Andrew T. McDonald

Primary Institution: Department of Earth and Environmental Science, University of Pennsylvania

Hypothesis

The study aims to reassess the classification and anatomical features of Rubeosaurus ovatus based on new specimens.

Conclusion

The study provides new anatomical information for Rubeosaurus ovatus and clarifies its phylogenetic relationships with other ceratopsids.

Supporting Evidence

  • USNM 14765 is the first immature individual of Rubeosaurus ovatus recognized.
  • The study reassesses the parietal processes of Rubeosaurus based on new anatomical data.
  • Phylogenetic analysis places Rubeosaurus as the sister taxon to a clade of other ceratopsids.

Takeaway

Scientists found a young Rubeosaurus dinosaur and learned more about its family, helping us understand how these dinosaurs are related.

Methodology

The study involved a phylogenetic analysis incorporating new data from the subadult specimen USNM 14765.

Limitations

The study's conclusions are based on incomplete specimens, which may limit the understanding of Rubeosaurus ovatus.

Digital Object Identifier (DOI)

10.1371/journal.pone.0022710

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