[OAB 10] The reference for this claim is a book by Melvin A. Cook entitled Prehistory and Earth Models (London: Max Parrish, 1966). I wrote to the Insitute for Creation Research regarding this claim, and their response was as follows: "As you can see, this is a 30-year-old source, and it is out of print. We do not think this is good evidence anymore for a young earth. We do not think that there are any Precambrian wood samples. More recent publications, like the Defender's Study Bible, do not include this as a young earth indicator anymore."