Torosaurus Occurrence in Canada

[Troodon]

Jordan Mallon et al. paper on the occurrence of Torosaurus in Canada.   They also address the recent debate about whether Torosaurus is the mature growth form of Triceratops

 

https://academic.oup.com/zoolinnean/article/195/1/157/6540273#.Ynbe6O5gDpY.twitter

 

[Flx]

Thank you for posting.

 

A few years ago I saw a TED talk by J. Horner about merging late cretaceaous dinosaurs into a very low number of species (not only ceratopsians but also pachy, tyrannosaurs, etc.). I was quite skeptical then and I still am. 

Anyway, every year more dinos are excavated which will give a better overview about the diversity, growth stages etc.. We will see pice by piece!

[Troodon]

6 minutes ago, Flx said:

Thank you for posting.

 

A few years ago I saw a TED talk by J. Horner about merging late cretaceaous dinosaurs into a very low number of species (not only ceratopsians but also pachy, tyrannosaurs, etc.). I was quite skeptical then and I still am. 

Anyway, every year more dinos are excavated which will give a better overview about the diversity, growth stages etc.. We will see pice by piece!

I think he had it correct with Pachycephalosaurus