Eric Walker added Tiktaalik - Wikipedia to Tiktaalik

Eric Walker added Started Out as a Fish. How Did It End Up Like This? - The New York Times to Tiktaalik roseae, and added Tiktaalik roseae to Tiktaalik

Eric Walker added Tiktaalik roseae and Tiktaalik - Wikipedia to Tiktaalik, and added Tiktaalik to Stegocephalia

Eric Walker added Tetrapoda and Tiktaalik and Stegocephalia - Wikipedia to Stegocephalia, and added Stegocephalia to Elpistostegalia