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| Description: This figure shows two early tetrapod ancestors, a Devonian fish and the transitional form Tiktaalik roseae, as well as one of their descendants, an early amphibian. An analysis of the fossils shows that T. roseae, also known as a fishapod, had both fish and amphibian characteristics, so it probably was able to survive brief periods out of the water. The fishapod fossils were found on Ellesmere Island in the Canadian Arctic.
Picture Stats: Views: 2158 Filesize: 101.85kB Height: 960 Width: 850 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=676 Keywords: Evolutionary change in the tetrapod lineage, showing a transitional form. |