Unit 6. Sand as below. Zones of hard RB worth cones at top and 10 to 12 ft from top softer cones scattered below. Locally in sand are Venicella, a flat A clom (Cyprinocea?), small Tno (fibrous?) Also found 1 spindle-tube filling solidified (Coll. 2) Cones have abundant good Venicella locally esp. layer 10-12' from top. In this interval pellet structures esp. abundent. Resemblance of most to Ophio is strong. Sand also locally pelletized! Top Cone (layer markedly invecq. has crumbly parts but mostly solid. Fe-speckled cone sand, here marks top of massive-burrowed sands pic 1 pic 3 left discou Unit 7 Sand, fq-mg in tabular sets a few inches to a foot + thick, crosslamin. x lams locally marked by heavy M accumulation. Locally soft more commonly indurated, clay pellet lenses few, laminated with sand partings, channelled, tzi out into pellet layers. pic 2 17' In basal 3 or 4 ft a few Ophio like pellet forms. Chiefly devoid of burrowing & few thin lenser silt and clay with horiz. burrows. +20° 48' A4724 (29) 18