32 PENNSYLVANIA AND NEW YORK DEVONIAN. [bull. 120. 
Modiomorpha subalata (Con. ) Hall var. cheniungensis Hall (?) v c) 
The specimeus are not typical of the above species, but part of them are 
considerably shorter and resemble the M. quadrula Hall. 
Paheoneilo emarginata (Con.) Hall (tt) 
Goniophora cf. carinata (Con.) Hall (rr) 
Paheoneilo filosa (Con.) Hall (rr) 
Actinoptena boydi (Con.) Hall (c) 
No. 1476 H5. At about the middle of the upper cascade (Factory 
Falls) above the old woolen mill, is an irregular, concretionary layer, 
similar to those seen in Otsego County, 1ST. Y. These concretions lie on 
the surface near the mill. Above the lower (Fulmer) falls is quite a 
thick sandstone, which is exposed on the surface in blocks and forms 
that falls. Prof. White described these falls and the formations as fol- 
lows: "Just below Fulmerville, the Fulmer Falls of Dingmans Creek 
occur near the old woolen mill. The stream descends in a cataract 
from 890 feet A. T. to 850 feet, and then leaps from a narrow platform 
of sandstone through dark shaly rocks perpendicularly to 800 feet 
A. T. 
"Chemung fossils occur in the dark shales, but none are seen in the 
more massive bluish -gray sand rocks above; so that this is near the 
limit of the Chemung ; for on above the upper falls 50 feet there is 
seen the base of a massive grayish-green current-bedded sandstone 
which is in the Catskill." 1 
Fauna of No. 1476 H5. 
Paracyclas lirata (Con.) Hall (rr) 
Modiomorpha mytiloides (Con. ) Hall (rr) 
Nucnla corbuliformis Hall (?) (rr) 
Proth.yris lanceolata Hall (rr) 
Phthonia sectifrons (Con. ) Hall (rr) 
Spirifera mesastrialis Hall (rr) 
Chonetes scitula Hall (?) (rr) 
Loxonema hamiltonise Hall (?) (rr) 
No. 1476 H6. — Opposite the old woolen mill in a block of the com- 
pact arenaceous shale which has fallen down from the stratum just 
below the crest of the upper falls, are some fossils, as Paracyclas lirata 
(Con.) Hall, and other species. This stratum is immediately above the 
concretionary stratum, 1476 H5. 
No. 1476 H7.— South of the creek and above the old village is a ledge 
of grayish coarse-grained sandstone, which at that time was referred 
to the CatskilP by Prof. White, who says: "On above the upper falls 
50 feet there is seen the base of a massive grayish-green current-bedded 
sandstone, which is in the Catskill; it makes a cliff along the hills." 1 
No. 1476 Dl.— Exposures of shale along Adams Creek, north of 
Dingmans and below Mr. Mulford's house. Blue argillaceous shale, in 
which fossils are common at intervals. 
'G 6 , p. 207. 
2 Prof. White would now correlate this sandstone with the upper Chemung, as was stated on payo VA 
in reference to the same formation near Spragueville, Monroe County. 
