prosser.i SECTIONS OF THE BUSHKILL CREEKS. 27 
which the following were recognized : Zaphrentis Bafinesquii, Z gigantea, 
Heliophyllum Halli, together with several species of Syringopora, and 
other forms that I could not determine. This is by far the richest coral 
horizon in the district, being, in fact, a regular fossil reef. The cal- 
careous portions of the coral stems have often been removed by solu- 
tion, and then the matrix (usually a dark-gray calcareous shale) is pen- 
etrated by small branching cavities extending in every direction, thus 
giving it a honeycombed appearance." ] 
Fauna of No. 1476 C4. 
Favosites hamiltonire Hall (c) 
Amboccelia umbonata (Con. ) Hall (it) 
Spirifera mucronata (Con. ) Bill (rr) 
Spirifera fimbriata (Con. ) Hall (rr) 
Cypricardinia indenta (Con. ) Hall (rr) 
Cyathophylloid corals, at least three species are abundant, permeating the rock 
in nearly every direction (a) 
No. 1476 C5. — This exposure is by the side of the new road on the 
northern side of the Big Bushkill, which extends westerly from Bush- 
kill and intersects the north and south road which crosses the Big 
Bushkill and Saw Creeks. There are fissile grayish to dark blue shales 
in "the cuts along this road, especially at the foot of the steep hill 
not far east of its junction with the north and south road; also at the 
eastern end, where the road turns down from the hill before crossing the 
Little Bushkill. All of them contain some fossils, Leiorhynchus limitaris 
(Van.) Hall being the most abundant. These shales are pretty clearly 
of Marcellus age. 
Fauna of No. 1476 C5. 
Leiorhynchus limitaris (Van.) Hall (aa) 
Lunnlicardium fragile Hall (rr) 
Fauna of No. 1476 C5-KGra.yisii Shales a little northwest of the bluish 
Shales. 
Leiorhynchus limitaris (Van.) Hall (c) 
Actinopteria muricata Hall (rr) 
Goniatites sp (rr) 
No. 1476 Bl. — Bluish sandstones and shales in highway and by the 
side of Little Bushkill, where the highway crosses the creek above the 
falls, 3 miles north of Bushkill. The dip is from 14° to 16° to the north 
about 20° west. No fossils were found. Some of the ledges are rather 
grayish, split into thin layers, and somewhat resemble portions of the 
Starucca sandstone series. However, it is probably somewhat lower 
and in the so-called Chemung, as colored on the geological map of Pike 
and Monroe counties. 
No. 1476 B2. — Upper portion of the blue arenaceous shales at Bush- 
kill Falls, in the Little Bushkill Creek. Fossils are. not very abundant 
in these shales. 
'G 6 , p. 109. 
