This papercraft is Dino, a snorkasaurus, Fred Flintstone's pet dinosaur, a fictional character featured in the animated, prime-time American television sitcom The Flintstones, and its spinoffs, the paper toy was created by WebDude. There is also another version on the site: The Flintstones Dino Papercraft Ver.1.
Dino is a pet dinosaur of the series' main characters, Fred and Wilma Flintstone. In the show, he was a metaphorical pet dog, and exhibited the characteristics of a typical domesticated canine. He is some generic sauropod/prosauropod type. He frequently leapt upon Fred Flintstone, yapping happily, and energetically licked his face. Dino could also be moved to anger, at which point he would snarl and snap. He also loves to play with Pebbles and Bamm-Bamm. [Source: wikia]
You can download this papercraft template here: The Flintstones - Dino Ver.2 Free Papercraft Download [Cover] [PDF]