Abstract
Some years ago in an article in the Quarterly the finding of fossil spores and pollen in Cambrian or pre-Cambrian rock in the Grand Canyon was described. The plants which had produced the spores seemed to have been of kinds like those common today. Repeated checks showed no reason to suspect error or contamination. Yet scientists were skeptical of the report, including even some creationists who believe, on other grounds, that modern plants did indeed exist when the rocks were formed.