FAUNAL EVIDENCE AND CORRELATION. 233 



Table X.« — Table shmiAng distribution of Pennsylvanian species in the vicinity of Glenwood Springs. 



2193. 



2329a. 



2329b. 



Total. 



CIELENTEEATA. 



Lophophyllum profundum . 



(?) 



(?) 



HELMINTHA. 



Spirorbis sp - 



Rhombopora lepidodendroides 



BRACHIOPODA. 



Lingula sp 



Orbiculoidea sp 



Rhipidomella pecosi 



Orthotichia schuchertensis 



Derbya crassa 



Chonetes flemingi 



Chonetes geinitzianus 



Productus inflatus 



Marginifera ingrata 



Marginif era muricata 



Spirifer cameratus 



Spiriferina kentuckyensis 



Seminula subtilita 



Cleiothyris orbicularis 



GASTEROPODA. 



Aclisina .stevensiana? 



Loxonema parvum? 



Strophostylus cf. nanus 



Soleniscus cf. paludiniformis 



Pleurotomaria? cf. carbonaria 



Worthenia? sp. b 



Phanerotrema .sp 



CRUSTACEA. 



Beyrichia sp . 



Stations 2326, 2329, and 3329a can .safely be referred to the Weber formation,^ 

 since they occur from 100 to 200 feet above the Leadville limestone. Unluckily, 

 these are the most restricted in the number of species of the entire collection, but 

 they show the Pennsylvanian age of this horizon, and, as far as they go, agree with 

 the fauna of the Weber formation found elsewhere. The faunas of 2193a and 2329b 

 also agree fairly well with the Weber fauna, and perhaps rejiresent that horizon. 

 The collection from 2193a is of interest in that it supplied the specimens of Orthoti- 

 chia schuchertensis, the first instance of the occurrence of Orthotichia ip North 

 America, unless Orthis resupvnoides Cox is incorrectly referred to Schizophoria. 

 The fauna from 2193 is also an interesting one. It consists chiefly of very small 

 gasteropods not found in the other collections at this locality, or indeed elsewhere in 



"For a description of the localities indicated by number in this table, see locality register, pp. .519-532. 

 6 As the Weber is defined in the Crested Butte folio; this is the Weber shale or base of the Weber formation of the Ten- 

 mile and Leadville districts. 



