45 PALEOZOIC PALEONTOLOGY. 
This list is, for the most part, of Black River species, but with a 
few forms from the lowest Trenton. The horizon of the beds is upper 
Black River and basal 'Trenton. 
Locality 243 A.—This locality is in a small railway cut and quarry 
by the side of the Pennsylvania railroad, three-fourths of a mile north 
of the station at Belvidere.* At this point there is only a small 
exposure of the limestone and the fossils are very poorly preserved, 
only the following three species being identified : 
1. Actinostroma trentonensis n. sp. 
2. Orthis tricenaria Con. 
3. Bumastus trentonensis (imm.). 
The horizon indicated is the basal portion of the Trenton limestone 
proper. 
Locality 244 .4.—Another locality near Belvidere, which has fur- 
nished a few fossils, is a highly calcareous shale or slate, outcropping 
along the Pequest river, about one and one-quarter miles northwest 
of the town.+ The following species of fossils have been identified : 
1. Prasopora simulatria Ulr. 
COs) 
Rafinesguina alternata (Kmm.). 
3. Plectambonites sericeus (Sow.). 
4. Dalmanella testudinaria (Dal.). 
5. Bumastus trentonensis (/mm.). 
None of the species recorded from here are distinctive enough to 
characterize any particular horizon, further than to show it to be 
higher than the Black river. The most abundant species in the fauna 
is Plectambonites sericens; Dalmanella testudinaria being compara- 
tively rare, a fact which would indicate the horizon to be in the lower 
portion of the Trenton limestone proper. 
Other Localities—No collections of fossils capable of specific deter- 
mination have been made from other localities of the Trenton lime- 
stone in the State, although in all of the areas of the formation indi- 
cated on the small maps in the Report of the State Geologist for 
1900, to some of which reference has been made, organic remains 
of some sort have been detected. Broken fragments of crinoid stems 
are almost universally present in the limestones of the formation, 
and may also usually be found, by careful search, in the more cal- 
careous bands of the calcareous shales which represent the higher 
portion of the formation. 
The fossil faunas which have been recorded in the preceding pages 
* See Map No. 23, p. 93, loc. cit. 
+See Map No. 23, p. 93, loc. cit. 
