18 gen 68 anni a. C. - A freshwater species of dolphin named the Baiji went extinct around this time and never coexisted with dinosaurs.
Descrizione:
http://www.hummingbirds.arizona.edu/courses/Ecol206/Turvey%20et%20al.%202007%20Human-caused%20extinction%20of%20a%20cetacean%20species.pdf
Aggiunto al nastro di tempo:
Courtney Ha timeline
Data:
Immagini:
![]()
