April, 1909.] Conemaugh Formation in Southern Ohio. 487 



north. The Ames was visited at Carpenter, Meigs County, and 

 at the shale quarry of The Athens Paving Brick Co., in the 

 town of Athens. 



Section of The Athens Brick Company's Quarry: 



Ft. In. 



Sandstone 5 



Shale 30 



Ames Limestone 1 10 



Shales, blue and red 35 



Patriot Limestone 10 



Shale, black, fossiliferous 



In the above section the Ames limestone is a single layer with 

 numerous vertical divisions which cause the stone to come from 

 the cHff in angular blocks. This is quite different from the 

 Ames at Carpenter where it is shaly. The Patriot is a yellowish, 

 nodular rock, cherty in places but highly fossihferous. Large 

 specimens of Productiis semireticulatus and Spirifer cameratus 

 are common. The underlying black shale is thickly spotted 

 with Chonetes verneuilanus in all stages of growth from very 

 small to large robust indviduals. 



List of fossils identified from the Ames limestone: 



Productus cora D'Orbigny. 

 Productus costatus Sowerby. 

 Prodiictus semireticulatus Martin. 

 Productus pertenuis ? Meek. 

 Spirifer cameratus Norton. 

 Chonetes granulifer Owen. 

 Ambocoelia planoconvexa Shumard. 

 Spirijerina kentuckyensis Shumard. 

 LophophyUum profundum ? Milne-Edwards & Haime. 

 Petalodus destructor Newberry & Worthen. 

 List of Cambridge fossils: 



Spirifer cameratus Norton. 



Reticularia perplexa McChesney. 



Spiriferina kentuckyensis Shumard. 



Productus costatus Sowerby. 



Productus cora D'Orbigny. 



Productus punctatus Martin. 



Productus semireticulatus Martin. 



Derby a crassa Meek & Hay den. 



Chonetes verneuilanus Norwood & Pratten. 



Seminida subtilita Hall & Clarke. 



Aviculopecten coxanus Meek & Worthen. 



Lingula sp. 



Pernopecten aviculatus Swallow. 



Edmondia glabra Meek. 



Phillips ia major Shumard. 



