FA UN' A 153 



In the midst of the limestone, fossils have been found in hut four locali- 

 ties worth}' of mention, although fragments of trilobites and l)rachioi)ods 

 have been observed elsewhere. Just north of Blairstown a thin stratum 

 was found containing a large number of individuals apparently belong- 

 ing to but two species of trilobites. No entire specimens have been seen, 

 both species being represented b}' cranidia, free cheeks, and ])ygidia. 

 Our species is apparently undescribed and is })robably referable to the 

 genus Ptychoparia. The other, a much larger one, resembling the illus- 

 tration of Baihyurus armatus, Billings,* but without the occipital spine, 

 may be identified as Agraidos saratogensis Wale. The Upper Cambrian 

 age of the bed containing these two trilobites is assured. 



In O'Donnell and MacManniman's quarry, at Newton, a fauna of 

 about ten species of brachiopods and trilobites was collected, which in- 

 dicates theUpper Cambrian age of the enclosing sediments at that locality. 

 Among the trilobites, a species of Dikelocephalus is by far the most abun- 

 dant form, some fragments of which are of such a size as to indicate 

 the presence of individuals having a breadth of head of several inches. 

 A single broken cheek was found which seems to be indistinguishable 

 from similar specimens in the Hardiston quartzite referred to the genus 

 Olenellus. If additional specimens should confirm this identification? 

 •this occurrence of the two genera, Olenellus and Z>z^e/ocep/iaZits, associated 

 together, would be a notable one. 



At Carpentersville, south of Phillipsburg, in one of the outlying areas 

 of the Kittatinny limestone, Cambrian trilobites were found, and the 

 species Liostracus jersey ensis has been described f from there, although it 

 is quite probable that the generic reference is erroneous. 



In the railroad cut at Columbia, on the Delaware branch of the New 

 York, Susquehanna and Western railroad, a very different fauna was 

 collected from a bed in the upper portion of the Kittatinny limestone. 

 On the hillside above the cut, the overlying Trenton limestone is ex- 

 posed, so that this fauna must occur within a few hundred feet of the 

 summit of the formation. The fauna consists in large part of gastero- 

 pods, and the following preliminary identifications of the species have 

 been made : 



1. Syntrophia lateralis Whitf. ? 6. Ecculiomphalus sp. nndet. 



2. Dalmanella sp. nndet. 7. Raphistoma cf E. siaminea Hall. 



3. Platyceras sp. nndet. 8. Cyrtoceras cf. C. confertissimum Whitf. 



4. Melopioma quehe.censis Bill.? 9. Asaphus canalis Con. 



5. Ophileia complanata Van. ? 10. lllxnurus sp. nndet. 



* Geol. Survey Canada, Pal. Foss., vol. 1, p. 411, fig. 392. 



fGeoI. Survey N. J., Ann. Rept. State Geol., 1899, p. 51, pi. 1, figs. 1-8. 



