Eleventh annual report of the United States Geological and Geographical Survey of the Territories : embracing Idaho and Wyoming : being a report of progress of the exploration for the year 1877 . ing 850 7. Limestones outcropping on Station 66 i 8. Alternating limestones and shales outcropping in ridge running south > 1,000+ from Station 66 ) Total * 4,150+ In stratum No. 5 the following fossils were obtained: Meelcoceras* gracilitatis, mushbaclmnus, f cirratas, , two curta, No. 6 three or four undetermined conchifers
Eleventh annual report of the United States Geological and Geographical Survey of the Territories : embracing Idaho and Wyoming : being a report of progress of the exploration for the year 1877 . ing 850 7. Limestones outcropping on Station 66 i 8. Alternating limestones and shales outcropping in ridge running south > 1,000+ from Station 66 ) Total * 4,150+ In stratum No. 5 the following fossils were obtained: Meelcoceras* gracilitatis, mushbaclmnus, f cirratas, , two curta, No. 6 three or four undetermined conchifers and a new species ofAviculopecten were No. 7 the following: Eumicrotis curta, idahoensis, in No. 8, near the top: Terebratula semi simplex. augusta, idahoensis, and undetermined conchifers. The discussion of the age of these beds is left to a future ridge presents the appearance of a monoclinal as do all the iso- - * The genus Meelcoceras is a new one established by Prof. A. Hyatt. (See BulletinU. S. Geol. Survey, vol. v, No. 1, 1879, p. 111.) Plctte, JOXH. orb Urtes AB ^ct^wiPlate Jtxtcl TricLS. JifTCLTrius. Geological Survey. Plate LXa. Carb. Jura Trio , West E C
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