7/3/79 Does not have equivatum. But does contain mollusks. - 6 add stump & trunk sections w/ 1-2 mm growth rings. All comfits This is base of shale-coal unit on Mall's section. Acc. to Mac it's lower Bridgerian based on verts. 7952 Abt 1/4 mi NEAST of 7951 and 500' higher in section. Limonite cones above first of a series of 5 prominent cone beds making up the top of the section on the E side of this area of exposure. cercitiphyllum frag. pos. Betula frag. This is a large leaf that is at least Hamamelid. in its aff. Center parts of some cones here is weathered siderite.