Introduction. 
The present report on the Paleozoic Paleontology of New Jersey con- 
sists of two parts. Part I. covers the Stratigraphic Paleontology. The 
several geologic formations recognized in the State are described, lists 
of their included fossils are given and the characteristics of their fossil 
faunas are discussed with a view of establishing correlations between 
the Paleozoic formations of New Jersey and those of other regions. 
The detailed geographic distribution of the formations and their 
geologic structure are not considered in the present report, but many 
facts of distribution and structure have been given in a report upon 
“Portland Cement,” published in the Annual Report of the State 
Geologist for 1900, and in a report upon “The Rocks of the Green 
Pond Mountain Region,” in the Annual Report for 1901. 
Part Il. of the report is devoted to Descriptive Paleontology. In 
this part the fauna of each formation is taken up in detail, each one of 
its species being fully described and illustrated on the accompanying 
plates. This part includes the descriptions of many species previously 
described elsewhere, as well as the descriptions of a considerable 
number of new species here published for the first time. With the 
descriptions of old species one or more references to the literature of 
the species are always given, but no attempt at a complete. bibhography 
has been made. The references usually selected are those which will 
direct the reader to additional illustrations which will be helpful in 
the identification of the species. For a complete bibliography of the | 
Brachiopoda, to which class of organisms a large number of the species 
described in the present volume belong, the reader is directed to Bul- 
letin No. 87 of the United States Geological Survey, entitled “A 
Synopsis of American Fossil Brachiopoda, including Bibliography and 
Synonymy,” by Charles Schuchert. Those readers who desire a full 
discussion of the characteristics of the various Branches, Classes, 
Orders and Families of the fossil organisms described are referred 
to any one of the several text-books of paleontology, the best one for 
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