Field Notebook: SD, CO, WY 1967
Page 19
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Transcription
Loc. Z Whipple Canyon - Chiefly in W½, SW¼, NW¼ sec. 25, T6N, R59W Judson Hills gqzd. B sand 30-35' thick. Intermittent shell beds at top in transition to overlying shale. Many Ophiomorpha, Cressacia, Tzucradiz, Nucula, Lunita? Euspira izquo Deuteliun. Collection from W side draw running S in W¼ SW¼ NW¼. As in Big Draw the B sand only fossiliferous in upper part where shale interbeds begin to appear, slabby concret masses also have local shell 1zyous on surfaces. Essentially same fauna. Very izquo, Deuteliun conspicuous. Tzucradiz most common bivalve locally, Numerous Ophiomorpha, Czadum is present but not common. Shark tooth is usual. Upper shale appears somewhat thicker here than in big draw, has some punky concretions in lower part. Saw no fossils. C sand at top have, no fossils found in it.