Locality 104 (end) Schoolhouse draw and adjacent areas to N-E. NE cor. sec. 19, NW¼ sec. 20 and SW¼ and S½ NW¼ and SW¼ NE¼ sec. 17, T. 37 N, R. 62 W. Three principal concretion horizons are exposed in the massive unit in this area. At top (#1) is the layer with phosphatic nodule zone (collected), layer 2 about 20' below, and lower layer with thick gray to reddish jackets (#3, collected) Layer 3 contains varied fauna including I. fibrosus, P. subquadrata, Sphenos, P. nebrascense Sphaerioda, Veniella, var of Discos. and bryozoans thruout. One conc. with small Becculites found. Most accumulations are bryozoa masses but ones with best communities have only scattered spec. Wood very common, one bone plate 6" sutured on rectangular pattern. Abundant fish scales & vertebrae locally Note. Section # 1 W of 1938 Luce Creek notes was apparently taken in this area. Should check out section and collections. Note on 100-104. Colgate-banded unit relationships Colgate prominent in 3 benches at 100+ 101, no evidence of it at 102 where flat top of S. Ant Hills sits on banded unit. At 104 nearly 100' banded unit above massive with no sign of Colgate. Suggests Colgate & banded are later or facies - at least in part. FIND OUT-1. Relative position Colgate above massive unit at all localities 2. Whether phosphatic nodule layer present only where Colgate absent. 3. Rel. nature Colgate-banded unit faunas. 43