EastScape Wikibuilt from the game itself
Skyraptor egg
“Laid by a Greater Raptor Hatchling and a Greater Pterodactyl Chick in the pen (Breeding 70). A hatchery and 3 Ordinary pet food: a Skyraptor in 48 hours. Tradable.”
Hatches
Hatches into 
Skyraptor in your island's hatchery, in 48 hours.
The Prize Counter
Bom pays 26,000 tickets for it.