A very large ceratopsian with three horns and a massive smooth frill

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   The Dinosaur Dave (thedinosaurdave@sauropods.win)'s status on Friday, 22-Nov-2024 07:12:27 JST The Dinosaur Dave

   This week for #Fossilfriday we have another #Guess that #Lego #Fossil.

   This one I would rate as easy. This well known ceratopsian is famous for possibly being an adult version of another dinosaur.
   
   Reminder: hide your answer behind a content warning. This will allow others to guess without a hint. I will post the answer tomorrow (and to anyone who guesses correctly).

   This is a modification of the original lego triceratops fossil I did, turning it into something new.