APA (7th ed.) Citation

(2017). Oldest known marine turtle?: A new protostegid from the Lower Cretaceous of Colombia.

Chicago Style (17th ed.) Citation

Oldest Known Marine Turtle?: A New Protostegid from the Lower Cretaceous of Colombia. 2017.

MLA (8th ed.) Citation

Oldest Known Marine Turtle?: A New Protostegid from the Lower Cretaceous of Colombia. 2017.

Warning: These citations may not always be 100% accurate.