HAWKINS, LOCKATOyO FORMATION OF THE TRIAS8IC 153 



Of the fossiliferous portions of the Lockatong, the Eeading Eailroad 

 tunnel at Phoenixville is probably the most prolific.^ This locality has 

 afforded estheriae, ostracods, plant remains, coprolites and various mam- 

 malian remains, including many bones and teeth. Wheatley reported 

 certain strata full of Saurian bones, and some layers filled with teeth. 

 Certain reddish brown layers were also found to contain abundant carbon 

 derived from organic remains. The species of fossils from this tunnel at 

 Phoenixville are to be fully described in the Honeybrook-Phoenixville 

 Folio of the United States Geological Sur^^ey, soon to be published. One 

 of the horizons where specimens of Estheria ovata abound is now exposed 

 near the southern portal of the tunnel, where in the black shales they 

 may be found in large numbers and in a good state of preservation.^^ 



The following species from this localit}^ were listed by Wheatley in 

 1861: 



Plants 



Equisetum columuare Brong. 



Pterozamites longifoUiis Emmons. 



Gymnocaulus alteruatus Emmons. 



Fir-cones. 



Calamites pinictatus ? Emmons. 



Plants, seed vessels, etc., genera imdetermined. 



Crustaceans 



Estheria ovata ( Position ia ovata Lea.) 

 Estheria parva (Posidonia parva Lea.) 

 Cypris. 

 Limulus f 



Fishes 



Turseodus acutus Leidy. 

 Radiolepis speciosns Emmons. 

 Catopteris gracilis Redfield. 



Reptiliaxs 



Clepsisaurus Pennsiflvanicus Lea. 



Eurydorus serridcns Leidy. 



Composaurus — ? Leidy. 



Centemodon siilcatiis Lea. 



Bones and teeth probably batrachian. 



Coprolites. 



Foot-tracks. 



s Wheatley, C. ^r., Amer. Jonr. Rci. and Arts, Vol. XXXII, p. 45, 1861. 

 lo/fe/f?., pp. 45-46. 



