“What dinosaur loves pancakes?”/“A tri-syrup-tops.”

A dinosaur riddle is:
 
Q: What dinosaur loves pancakes?
A: A tri-syrup-tops.
 
The pancake joke was posted on the newsgroup alt.ozdebate.jokes on October 18, 1999.
 
   
Wikipedia: Triceratops
Triceratops is a genus of herbivorous ceratopsid dinosaur that first appeared during the late Maastrichtian stage of the late Cretaceous period, about 68 million years ago (mya) in what is now North America. It is one of the last known non-avian dinosaur genera, and became extinct in the Cretaceous–Paleogene extinction event 66 million years ago. The term Triceratops, which literally means “three-horned face”, is derived from the Greek τρί- (tri-) meaning “three”, κέρας (kéras) meaning “horn”, and ὤψ (ops) meaning “face”.
 
Bearing a large bony frill and three horns on its large four-legged body, and possessing similarities with the modern rhinoceros, Triceratops is one of the most recognizable of all dinosaurs and the best known ceratopsid.
       
Google Groups: alt.ozdebate.jokes
Some Dinosaur Jokes for the Kids
Danno
10/18/99
(...)
Q: What dinosaur loves pancakes?
A: A tri-syrup-tops.
 
Google Books
Dinosaur Jokes
By U.R. Phunny  
Edina, MN: Abdo Publishing Company
2004
Pg. 22:
What dinosaur loves pancakes?
Tri-syrup-tops!
 
Twitter 
sharron_piedrah‏
@sharron_piedrah
Q: What dinosaur loves pancakes? A: A tri-syrup-tops.
4:16 PM - 15 Jan 2010
 
Twitter
Morten Stenbaek‏
@mobitwix
Q: What dinosaur loves pancakes? A: A tri-syrup-tops.
12:30 PM - 18 Jan 2010
 
Twitter
Vibhy Rickwari‏
@vibhy
Q: What dinosaur loves pancakes? | A: A tri-syrup-tops. #joke
1:12 AM - 24 Feb 2010
 
Facebook
Parkway PTA - Ewing, NJ
December 9, 2012 ·
Q: What dinosaur loves pancakes?
A: A tri-syrup-tops!
   
Google Books
Sensible Nonsense.. Frank’s Comic Pack:
Humour Pack Series
By Frank Paul
BookBaby
2014
Pg. ?:
Q: What dinosaur loves pancakes?
A: A tri-syrup-tops
   
27 February 2014, Evening Chronicle (Newcastle-upon-Tyne), “Joke Time,” pg. 44:
What dinosaur loves pancakes? A tri-syrup-tops.
 
Twitter
Lucky Score‏
@LuckyScoreNet
Q: What dinosaur loves pancakes?
A: A
tri-syrup-tops.
#Joke from #DinosaurJokes in #Jokes,  #Humor and #Satire
1:32 AM - 14 Aug 2017