Wondered if anyone had seen this? Fassett, J. E., S. G. Lucas, R. A. Zeilenski, and J. R. Budahn. 2000. Compelling new evidence for Paleocene dinosaurs in the Ojo Alamo Sandstone, San Juan Basin, New Mexico and Colorado, USA. Pp. 45-46 In Catastrophic events and mass extinctions, Lunar and Planetary Contribution No 1053. Lunar and Planetary Institute, Houston.