480 The Upper Devonian Deposits of Maryland 



cularis, Camarotcechia congregata var. parlcheadensis abundant, Camarotce- 

 chia horsfordi, Cyrtina hamiltonensis common, Produdella laclirymosa 

 abundant, Spirifer marcyi var. supersies common, Spirifer (DeUhyris) 

 mesacostalis abundant, Tropidohptus carinatus abundant, CypricardelJa 

 gregaria var. abundant, Cypricardella tenuistriata, Goniopliora hamilton- 

 ensis, Goniopliora truncata, Scliizodus sp., Bellerophon clarki, Bucanopsis 

 mcera common, Cydonema concinnum, Cydonemina mulUstriata abun- 

 dant, Ectomaria marylandica, Holopea sp., Hormatoma hisiriata, Lox- 

 onema ? glahrum Orthonydiia unguiculata, Plinenerotinus laxus, 

 Pleurotomaria {Gyro ma) capillaria, StraparoUus marylandicus, Orth- 

 oceras sp., Phacops rana. 



While the section is very short it is remarkable for the profusion and 

 perfect preservation of the fossils contained in it. Probably no other 

 locality in the State has afforded so many species from a single bed of 

 the Jennings formation. 



XI. Section on Fifteenmile Creek * 

 Fifteenmile Creek crosses the axis of the Pawpaw anticline one mile 

 north of Little Orleans, where the following section is exposed. 



Jennings FoRMATiox '^'°"I '^S- 



Chemung Sandstone Member c-^too " ^-^ 



Direction of creek due N. S. ic|g| 



= i o 



Green fissile shale with bands of green sandstone. At 

 top occur Scliucliertella chemungcnsis, Spirifer disjunctus, 

 8. mesastrialis. N. 25° 40° E 1405 70 2286 



Direction of creek N. 53° E. 



Green fissile shale with considerable thick-bedded mas- 

 sive green sandstone. At top a layer of fossils occurs 4 

 inches thick containing crinoid segments, Ambococlia urn- 

 bonata abundant, Chonetes scitulus, Pterinea chemungensis, 

 Spirifer disjunctus 1185 167 2216 



Measured by pacing. 



