ammonites
Eoplectodonta-Dicoelosia Subcommunity of the Rochester Shale at Densmore Creek (Silurian of the United States)

Where: Monroe County County, New York (43.2° N, 77.5° W: paleocoordinates 28.8° S, 41.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lewiston Member (Rochester Shale Formation), Wenlock (428.2 - 422.9 Ma)

• member-level stratigraphic resolution

Environment/lithology: offshore; shale and grainstone

• 2003:04:06 SEP environmental/tectonic/sequence calls based on field knowledge familiarity with stratigraphic context.
• Excellent collections have been obtained from bulk samples of weathered shale at Densmore Creek in the town of Irondequoit... Relatively shallow depths are indicated by abundant calcarenites that appear to represent coquinites winnowed by storm waves or storm generated combined flows... The presence of sharp bases, crude upward fining, minor cross lamination, lenticular geometries, and particularly well preserved, articulated fossils in the lags indicates episodic rather than ongoing current agitation of the sea floor.

Primary reference: C. E. Brett. 1999. Wenlockian fossil communities in New York State and adjacent areas: Paleontology and Paleoecology. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities: A Case Study from the Silurian and Lower Devonian 592-637 [M. Foote/K. Koverman/J. Alroy] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 13047: authorized by Michael Foote, entered by Kimberly Koverman on 17.01.2002