Dinosaurs

Dinosaurs, and other prehistoric creatures were trapped alive in tree sap in the abandoned mines in the Gravity Falls forest. The summer heat is causing the tree sap to melt, slowly releasing the dinosaurs and others from the sap.

History
At the end of the Gravity Falls theme song, the pterodactyl makes an appearance in a photograph.

In "The Time Traveler's Pig," when Dipper and Mabel go back to the past, they are attacked by a dinosaur.

In "Land Before Swine," the Pterodactyl escapes the tree sap and begins terrorizing the town and ends up stealing Waddles. It retreats to the Abandoned mines, where other Dinosaurs are seen trying to escape.

Appearance
A number of dinosaur species are seen trapped in tree sap in the abandoned mines. They are all from different periods of the Mesozoic. Some of them are:
 * Tyrannosaurus Rex
 * Stegosaurus
 * Gallimimus
 * Ceratosaurus
 * Utahraptor
 * Triceratops
 * Brachiosaurus
 * Unknown dinosaur (only its tail was visible, it was possibly a Spinosaurus)
 * Pterosaur

Sightings
Динозавры