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Re: How would Tyrannosaurus approach a Triceratops?

Jaime A. Headden wrote-

Note that tyrannosaurs are not really well known for their scleral rings,
such that, unlike birds, their eyes were free from these physical constraints.

Tyrannosaurids did have sclerotic rings. Here's what Hurum and Sabath have to say about Tarbosaurus-

"The sclerotic ring is only preserved in a subadult specimen with the skull length of about 0.8 metre,
GIN 100/70. Here the sclerotic ring has an external diameter of about 65mmand internal diameter of 30 mm. It consists of 15 plates. The sclerotic ring is still relatively large in this juvenile individual, and the orbit is almost oval. The ?keyhole shape? of the orbit in adults defines the space for the eye at the upper end. The eye in juveniles would also occupy proportionally more of the orbit."

Mickey Mortimer