189 Paleontology, Paleoecology/Taphonomy (Posters)

Tuesday, 21 October 2025
8:00 AM - 5:30 PM
HBGCC, Hall 1

Dacryoconarids from the Genundewa Limestone, Frasnian (Upper Devonian), western New York State

Paper number: 189-5
Program: Technical Sessions
Time: 8:00 AM – 8:00 AM

Authors

Abstract

The Genundewa Limestone, the “Pteropod Limestone” of Grabeau (1898-1899), is a 30-50 cm thick carbonate packstone-grainstone between the Penn Yan and West River formations of the Genesee Group that outcrops from the shores of Lake Erie to the western Finger Lakes of western New York State. The Genundewa Limestone consists almost entirely of current aligned dacryoconarids that represent a winnowing of fine clastic material and concentration of pelagic shelly fossils, interpreted as an offshore accumulation during a deepening phase in the Appalachian Basin.  The dominant taxon is Styliolina fissurella also recovered were Nowakia sp., Striatostyliolina sp., and Viriatella sp.  There were no significant differences between taxa from the western/more offshore samples collected along Eighteenmile Creek and the eastern/more shoreward samples collected in the Genesee River Valley.

Geological Society of America Abstracts with Programs. Vol. 57, No. 6

doi: 10.1130/abs/2025AM-412825

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