Report on Paleontology Volume 3 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ... FAUNAS OF DEVONIAN AGE. All the Paleozoic formations in New Jersey lying above the Manlius limestone are referable to the Devonian period. The formations recognized-are the Coeymans limestone, the New Scotland beds, the Becraft limestone and the Kingston beds belonging to the Helderbergian series. Following these is the Oriskany formation, with its beds of siliceous limestones and sandstone; then comes the Esopus slate, followed by the Onondaga limestone. All these formations occur in the Delaware Valley region. In the Green Pond region there are some still younger Devonian formations. The Newfoundland grit is usually a quartzite with fossils of Onondaga age; following this are the Monroe shales and Bellvale flags of Hamilton age, and the Skunnemunk conglomerate, which is undoubtedly Devonian in age, although it has not been found to be fossiliferous. In the Helderbergian series only two faunas have been differentiated and described separately, they being the Coeymans limestone fauna and the New Scotland-Becraft fauna, the faunas of the two latter formations having so much in common, although each has some peculiar species, that it has been thought best to include them together in one faunal group. The Kingston beds have not been found to be fossiliferous in New Jersey, unless the "trilobite bed" characterized by Dalm unites dentatus should be considered as the summit of the formation. This bed, however, contains so many species allying it with the superjacent Oriskany'that it has been considered as being of lower Oriskany age, and its fauna is treated separately. The higher Oriskany faunas, although two distinct faunal zones may be easily recognized, are all described together. The Esopus slate is unfossiliferous, and the fauna of the Onondaga limestone i...