Dracorex and Stygimoloch OR Juvenile Pachys (Paleo Myths #2)

Two really cool Hell Creek Pachycephalosaurids have been desrcibed, Stygimoloch and Dracorex. But now these two are entrenched in a debate. Were they valid genera or younger forms of Pachycephalosaurus? #dinosaurs #paleontology

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Sources
2016 Skull Paper: https://www.tandfonline.com/doi/abs/1...

2009 Summary: The early expression of squamosal horns and parietal ornamentation confirmed by new end-stage juvenile Pachycephalosaurus fossils from the Upper Cretaceous Hell Creek Formation, Montanahttps://newsarchive.berkeley.edu/news...

Horner Presentation:    • Jack Horner: Shape-shifting dinosaurs  

Prenocephale: https://thesauropodomorphlair.wordpre...

Private collection: https://www.science.org/content/artic...

Separate Ages: https://www.ncbi.nlm.nih.gov/pmc/arti...

Sereno Paper: https://www.ncbi.nlm.nih.gov/pmc/arti...
Tiny Skull: https://eartharchives.org/articles/pa...

Tiny Skull 2: https://www.nationalgeographic.com/sc...