Maryland Geological Survey 



453 



Woodmont Shale Member "S-Si^o 



BEDS CO\TA[XING THE ITHACA FAUNA 'ic.cg-S 



a S Tt r S 



Arenaceous shale and sandstone of deep-red color 1526 



Green shale. N. 25° E. 65° W 1481 



Red shale breaking irregularly 1361 



Red shale and hard red sandstone N. 26° E. 50° W 1326 



Green sandstone and shale 1241 



Fissile green shale 1231 



Red shale breaking irregularly 1171 



Green and red shale N. 35° E. 53° W 1160 



Coarse shale, irregular fractui-e, red and green sand- 

 stones 1125 



Green and red shale and sandstone. Ravine to the left, 



house on the right 1115 



Concealed 1080 



Green fissile shale. N. 35° E. 50° W. At the bottom 

 were found Cyrtina hamiltonensis abundant, Liorhynchus 

 globuliforme abundant, Productella speciosa abundant, 



Spirifer mucronatus var. posterus 1050 



Red and green shale breaking irregularly 970 



Coarse green shale containing at the bottom Cyrtina 

 hamiltonensis, Liorhynchus globuliforme abundant, Produc- 

 tella speciosa, Spirifer mucronatus var. posterus, Gram- 



mysia communis 940 



Green and brown shale breaking irregularly and some 

 sandstone. N. 22° E. 60° W. At the bottom of this unit, 

 840 feet west of beginning of section occur Productella 

 speciosa, Schizophoria striatula abundant, Spirifer mesas- 



trialis, S. mucronatus var. posterus abundant 920 



Beginning of section permitting estimates of thickness. . 840 

 East of this point the folding is too intricate to permit 

 the determination of thickness. The following species oc- 

 cur at the positions indicated below: 



Atrypa reticularis, Cyrtina hamAltonensis, Productella 

 speciosa abundant, Schizophoria striatula abundant, Spiri- 

 fer mucronatus var. posterus abundant, Stropheodonta 



demissa, Cypricardella ? sp., Pterinca chem ungensis 660 



Meristella humilis, Productella lachrymosa ?, P. speciosa 

 abundant, Pugnax pugnus var. altus, Schizophoria striatula 

 abundant, Spirifer mesastrialis, S. 7nuGronatus var. pos- 

 terus abundant 510 



Chonetes lepidiformis 1, Liorhynchus gloiuUforme, Pro- 

 ductella speciosa common, Spirifer mesastrialis, Ecteno- 

 desma hirostratum 270 



C 





28.9 



1600 



08 



1571 



31.7 



1463 



65.1 



1431 



7.6 



1366 



45.6 



1359 



8.3 



1313 



26 



1304 



7.6 1279 



26.8 

 22.8 



50 

 22.6 



69 



1271 



1244 



1222 

 1162 



15 1139 



1124 

 1055 



