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Show APPENDIX B.- P& LAONTOLOGT. 407 N, B. The colours on the map of the travelled route are-- Bine ..........;../..'. Carboniferous liibestoiie. Greeii. ..... Cretaceous formation. ~: Yellow....% Tertiary formation. ' ( In some plages not indicated by colour.) Black, Coal- T> eds. Bed r.. „ Metamorphic rock. . On the Great Bait Lake map Bed . Metainorphic rock* . / Blue .... Limestone. , Yellow.............. Sandstone and, conglomerate beneath the • • • limestone. NOTES UPON SOH£ 01" THE FOSSILS COLLECTED ON THE BOUTE FROM. THE MISSOURI RIVEft TO THE GKEAT SALT LAKE, AND IN THE VICINITY OF THE LATtER PLACE, BY THE. EXPEDITION UNDER JHE • \ COMMAND OF CAPTAIN HOWARD STANSBUB*, T.. B. THE species described in the following paragraphs rare either from limestone of. the carboniferous period or from strata nearly associated, and which* from their character and relation^, are clearly of th£ same age. The other fossils of the'collection consist of a few oretaceons species, and of numerous fragments of bories from the tertiary formation. The braehiopods were collected to the Eastward of the^ Salt. Lake, region, and the corals are abundant in, the limestonexto the west a^ d north- wBst of the Salt Lake. The few acephala are frpm argil-laceous beds between Fort Laramie and the Salt Lake. { JOBALS.- CYATHOPHTLLIDE*. . FAVIPHTLLUM? BUGOSUM, ( n.. sp,) . ' - v PtAti I. Fio. l a AMX> l b , <" • v Cells deep; structure of the centre unknown; external portion cellular, ^ rith. transverse septo and vertical intermediate dissepiments, giving a columnar structure. |