Title

Lower Devonian invertebrate trace fossils from the Oriskany formation northwestern New Jersey

Document Type

Article

Publication Date

6-1-2008

Abstract

Lower Devonian beach or barrier-bar deposits of light-to medium-gray calcareous sandstones and medium-to medium dark-gray siltstones of the Oriskany Formation, Delaware Water Gap National Recreation Area, New Jersey, have yielded the trace fossils Planolites beverleyensis, Skolithos linearis, as well as a bivalve escape structure. Skolithos linearis, representing vertically-oriented feeding burrows within light-to medium-gray calcareous sandstones, records exploitation by opportunistic suspension feeders in a very shallow marine environment during dominant high energy conditions. In contrast, Planolites beverleyensis, representing horizontally-oriented shallow burrows within medium-to medium dark-gray siltstones, denotes exploitation by opportunistic deposit feeders during relatively abrupt, short lived lower energy levels within the same environment.

Publication Title

Northeastern Geology and Environmental Sciences

First Page Number

111

Last Page Number

117

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