Old Rocks
Diamond Member
If one looks at Spriggina, towards the end of this video, you will see something that very well could have been the precursor to trilobites.
[ame=http://www.youtube.com/watch?v=RZcvbxlf9yk]Ediacaran Fauna Overview - YouTube[/ame]
[ame=http://www.youtube.com/watch?v=RZcvbxlf9yk]Ediacaran Fauna Overview - YouTube[/ame]