Gustavo Thomas:
Dinosaur Valley (Drumheller, Canada. Gustavo Thomas © 2013)
Gustavo Thomas:
Skull of Triceratops (Drumheller, Canada. Gustavo Thomas © 2013)
Gustavo Thomas:
Dinosaur's Shadow (Drumheller, Canada. Gustavo Thomas © 2013)
Gustavo Thomas:
On the Way to Drumheller (Alberta, Canada. Gustavo Thomas © 2013)