1. Preliminary study of an eggshell site in the Morrison Formation of Colorado;Alf;Modern Geology,1998
2. A preliminary restoration of the Morrison deltaic environment in central Wyoming;Allen,2000
3. Cheirolepidiaceae: biology, structure and paleoecology;Alvin;Review of Palaeobotany and Palynology,1982
4. The Middle Jurassic Summerville Formation, northern New Mexico;Anderson;New Mexico Geology,1992
5. Middle Jurassic stratigraphy, sedimentation and paleogeography in the southern Colorado Plateau and southern High Plains;Anderson,1994