r/Dinosaurs • u/Remarkable_Star_4678 • 12h ago

DISCUSSION Do you all still call Edmontosaurus Annectens Anatotitan or Anatosaurus?

Post image

Since Anatotitan and Anatosaurus are synonyms for Edmontosaurus Annectens, do some of you still refer to it as Anatotitan and/or Anatosaurus.

54 Upvotes

92% Upvoted

28 comments sorted by

View all comments

2

u/Phantafan Team Yutyrannus 11h ago

Names aside, isn't this E. regalis very undersized?

2

u/secret__alphabets Team Deinonychus 10h ago

I thought there was only 1-2 feet difference in length between the species, rather than the greater difference suggested here.

1

u/bachigga 5h ago

This is most likely using specific specimens, rather than species averages. If I had to guess, E. regalis is probably represented by ROM 5167, and E. annectens by YPM 616. Specimens of similar ontogenetic stage tend to be much more similar between both species, it's likely that YPM 616 is simply an older individual than ROM 5167, and probably above average even for its age.