312 WALCOTT 



Feet, 

 lb. Greenish sandy and argillaceous shale. At 14 feet large, 

 slightly calcareous oval nodules occur, and at 49 feet a 



thin band of nodular limestone 75 



ic. Brick-red argillaceous shales, with irregularly arranged 



bands of calcareous nodules 41 



Fossils : 



Coleololdes^ and slender tubes of HyolitheSi suggesting 

 Hyollthes co?n?minis . 

 id. Greenish argillaceous shales, with larger and more numer- 

 ous calcareous nodules than in ic 38 



The nodules form almost solid layers in some places. 



Coleoloides occurs abundantly in the calcareous nodules. 



le. Massive-bedded, pinkish-colored limestone, with many 



nodular, dark, small concretions, suggesting St?- 0771a- 



topora 28 



Fossils : 



Fragments of fossils occur all the way through this band. 

 Coleoloides and a slender Hyolithes^ fi^agmentsof Ole7i- 

 ellus^ and Agraidos ? were recognized. At Hearts De- 

 light Point, to the north, Ole7iellus ( H.) brogoreri was 

 found in the upper layer, corresponding to the upper 

 layer of the Smith Point limestone. 

 if. Reddish argillaceous shales, with thin bands of pinkish 



limestone 79 



Fossils : 



Twelve feet from the base a band of limestone 6 inches 

 in thickness occurs, carrying numerous fragments of 

 fossils, including the genera Coleoloides^ Oleitellus^ 

 and Agra2ilos ?. 

 ig. Alternating bands of reddish and greenish shale, with cal- 

 careous nodules 145 



ih. Greenish arenaceous shales 127 



li. Pinkish and reddish nodular limestone i ft. 6 in. 



Reddish shale 4 



Pinkish-colored nodular limestone 2 7^ 



ij. Greenish arenaceous shale 42 



ik. Reddish arenaceous shale 21 



ll. Pinkish-colored limestone 12 inches in thickness where 

 first met with, but thickening on the strike to 4 to 5 feet, 

 where there is a well-marked conglomerate near the bot- 

 tom, formed of rolled pinkish- and greenish-colored lime- 

 stone pebbles. Both pebbles and matrix are filled with 



fragments of trilobites and Coleoloides 5 



Among the fossils were recognized Obolella ?, Hyolithes^ 

 Microdiscus^ and Sole7iopleu7'a. 



