Palynomorph biozones and boundary: Stratotypes in the Maestrichtian-Danian, Denver Formation, north and south Table Mounains, Golden, Colorado.
Reference:
Newman,K.R. et al. (1978)
Palynomorph biozones and boundary: Stratotypes in the Maestrichtian-Danian, Denver Formation, north and south Table Mounains, Golden, Colorado. American Association of Stratigraphic Palynologists,11th Annual Meeting,Program and Abstracts
P. 26- 27