The essence of it is that some paleontologists think Triceratops might actually be the juvenile form of Torosaurus, rather than a distinct species. The Wikiped

The essence of it is that some paleontologists think Triceratops might actually be the juvenile form of Torosaurus, rather than a distinct species. The Wikipedia entry is pretty decent[1] and the actual paper can be found here [2] [1] https://en.m.wikipedia.org/wiki/Torosaurus https://en.m.wikipedia.org/wiki/Torosaurus [2] https://www.tandfonline.com/doi/abs/10.1080/02724634.2010.483632 https://www.tandfonline.com/doi/abs/10.1080/02724634.2010.48...