FAUNAS OF BEDS 37 AND 34. 35 



The list of fossils which I have given above is the result of two hours' 

 collecting in the railroad cut, and the number of species would undoubt- 

 edly be increased by further search. i\Ieek and Hayden reported Cho- 

 netes verneuiliana, N. and P. ; Euomphalas cf. rugosus, Hall, and Cladodus 

 occidentalism Leidy, which I did not see, while my list contains the fol- 

 lowing additional species, viz : 



FrodnctHS cora, d'Orbigny ; P. )iebrascensis, Owen; P. semireticulatus (Martin), de 

 Koninck; Chondes glabra, Gehutz; Lingala mytiloidcs, Sowerby (?) ; Derhya crassa 

 (M. and H.), H. and C; Meckella striato-costnla (Cox), White and St. John ; Syntri- 

 lasma hemiplicata (Hall), M. and AV.; Crania sp.; AUorisma subcuneata, M. and H.; 

 Aviculopeden occidentalis (Shum.), M. and W. (?) ; Nuculana bellistriata, Stevens, 

 var. attenuata, Meek (?) ; Dav.'sonella meeki, Bradley (?) ; LophophyUam proUfcrum 

 (McChesney), Meek; Fistidlpora nodidifera, Meek; Rhombopora lepidodendroides, 

 Meek; Archofvcldaris, two forms, and Ph'dlipsia major, Sliumard (?). 



The list of Meek and Hayden contains 16 species and my list 19 addi- 

 tional species, making the total number 35. I think there can be no 

 doubt but that the shales and argillaceous limestones in the upper part 

 of the railroad cut near the foot of Blue mount represent Meek and 

 Hayden's bed called number 37. There are also fossils in the dark gray 

 to bluish limestone near the railroad level which probably represent 

 their number 39. 



I am not confident of this horizon in Swallow's section, although I 

 am inclined to think that it is the P\tsulina shales — number 96 — of his 

 upper coal series, which were described as "dark blue marly shale," 12 

 feet thick, containing " numerous Carboniferous Brachiopoda," exposed 

 at Manhattan, Cottonwood and Mill creek. 



MOUXT PROSPECT EXPOSURE OF MEEK AND HA YDEN'S BED Sk. 



This bed is described as composed of " alternations of bluish, purple 

 and ash-colored calcareous cla3^s, passing at places into clay stones and 

 containing, in a thin bed near the middle, Spirifer planoconvexa, Spirigera 

 subtdita, Prodactus splendens (?), Rhynchonella uta,^^ etcetera,* the base of 

 which, according to their section, is 126? feet above the Kansas river. On 

 the steep western slope of mount Prospect, about 120 feet (barometri- 

 cally) aljove the river, is a l)luish shale l)etween two calcareous layers, 

 which contains a great many specimens of two or three species. The list 

 is as follows : 



1. Spirifer (Martinia) planoconvexm^, Shuiuard, (a) 



2. AVt//nc/to/k'//a j(to ( Marcou), Meek. \c) 



3. Athyriii sid)tdUa (Hall), Newb. (c) 



♦ Proc. Acad. Nat. Soi., Phila., vol. xi. p. 18. 



