Triceratops may not have existed

… they were just immature torosaurus:

DINOSAURS were shape-shifters. Their skulls underwent extreme changes throughout their lives, growing larger, sprouting horns then reabsorbing them, and changing shape so radically that different stages look to us like different species.

This discovery comes from a study of the iconic dinosaur triceratops and its close relative torosaurus. Their skulls are markedly different but are actually from the very same species, argue John Scannella and Jack Horner at the Museum of the Rockies in Bozeman, Montana.

It turns out that there are a number of interesting morphs that have been proposed, and this is just the latest one.  It’s still early research, but pretty interesting to think about.

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