154 ANNALS NEW YORK ACADEMY OF SCIENCES 



The canal quarry, situated about a mile north of Phoenixville, on the 

 Schuylkill Elver, yields ganoid scales and plant stems. Some three or 

 four miles farther east, there is a good exposure along the Perkiomen 

 Eailroad; north of Oaks station, near the road bridge which crosses the 

 railroad cut, the black shales are filled with estheria?, with a few fish re- 

 mains. The next exposure farther northeast is the cut of the Philadel- 

 phia and Reading Railroad between Gwynedd Valley and North Wales. 

 From this locality some few fish scales and possibly estherise have been 

 reported. Near Wycombe station, on the North Pennsylvania branch of 

 the same railroad, there is a limy layer carrying estherise and fish scales, 

 with ostracods. This layer weathers yellow, and is best shown in a small 

 quarry along the railroad, some 1000 feet south of the station. 



Many years ago, F. L. Nason^^ found estherise at Scudders Falls, on 

 the Delaware River, and fish scales have been reported from this vicinity 

 (Washington's Crossing). Scudder's quarry, one and one-half miles 

 north of Lawrenceville, contains some good scales of both Semionotus 

 and Ptycholepis,, as well as a wealth of tiny black spines or setae. All 

 these are in the black shales in the center of the quarry, and all occur 

 practically together.^^ Other exposures examined by the writer yielded 

 little except a few obscure plant remains and tiny spines. 



Fishes of the Semionotus type have been found at many horizons in 

 the Triassic rocks of the New Jersey-Pennsylvania area, as well as in the 

 Massachusetts-Connecticut area. Good specimens have been found in 

 the lower part of the Stockton series below the Palisade trap sill at Wee- 

 hawken; there are specimens of a similar fish from excavations near 

 Plainfield, N. J. (Warrenville copper mine), in the center of the Bruns- 

 wick; and the large numbers of splendidly presented examples from 

 Boonton, Morris Co., N. J., near the top of the Brunswick, are well 

 known. Sunderland, Mass., and neighboring places are also notable as 

 localities for fossil fishes. Of these fish-bearing horizons the Lockatong 

 is but one, and not the principal one. The presence of fish remains 

 throughout the Newark series speaks clearly of roughly similar condi- 

 tions reappearing at intervals during the time of deposition; and the 

 presence of these remains throughout the Lockatong emphasizes its har- 

 mony and unity with the rest of the larger series. A full description of 

 the fossil fishes of this type is given in the Annual Report of the State 

 Geologist of New Jersey, 1904, and more recently by Chas. R. Eastman.^^ 



"• Ann. Kept State Geologist of N. J., 1888, p. 29. 



^ Jones, op. cit., p. 88, makes an evident reference to this locality. 



13 "Triassic Fossil Fishes of Connecticut," Conn. Geol. Surv., Bull. 18. 1911. 



