SS locally sits on clzystones below them with irreg surface. Both this interval & that above prob zone of local 'polished pebble floz't. At this locality local wash concen't of goodies about at top of this study unit. Morison 11.0 Clzystone, chiefly, bright 'swimming pool green, some purple mottling locally. 5.5 Clzystone, weathered, chiefly grey + reddish, some green, upper foot is highly silty & laterally contains little irreg thin bedded leascs resistant siltstone, becomes less silty below this Offset - unit above sits on white-wash'th, nodular clzyey silt prob, loc. Amc? which weather's light grey + white, is mottled dk green + reddish, waxy. Dinosaur bones in floz' at top of bed. But some in floz' from base of green above. No ostracods.