Field Notebook: SD, WY 1956
Page 21
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Transcription
including a large Acantho-like in pieces may come from here. Chief fossiliferous concs are just above spotted zone. Great variety here including 1. Gervilliz type - few Discos, but these chiefly spinose 2. Large concs, pzut broken, with nobs of small concentration and many little sphenos. Also spinose types, but nicolleti's too, the latter not common Some have Protoceratlie dominant. 3. Dense protoceratlie concs. These found in place and are locally well up in fossiliferous zone. 4. Large Gervilliz concs, also have ammonites Completely ammonitic concs - that is dominantly, not found. Gervillizes and Protoceratlie dominate. Some neutilus, rare belemnite frags of phragmo- concs. Bullhead ammonites generally are not complete. Have crushed zones, other fossils pressed into them.