ammonites
Martinsburg - Cub Run - Maysville (Ordovician of the United States)

Where: Page County, Virginia (38.5° N, 78.6° W: paleocoordinates 29.5° S, 56.5° W)

• outcrop-level geographic resolution

When: Martinsburg Formation, Maysvillian (452.0 - 449.5 Ma)

Environment/lithology: transition zone or lower shoreface; lithified sandstone and shale

• paleoenvironmental interpretation by S.M. Holland
• heavy sandstone beds; very little shale...shaly partings...increase in thickness of sandstone beds [from below]

Primary reference: M. H. Secrist and W. R. Evitt. 1943. The paleontology and stratigraphy of the upper Martinsburg formation of Massanutten Mountain, Virginia. Journal of the Washington Academy of Sciences 33(12):358-368 [S. Holland/S. Holland] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5398: authorized by Steven Holland, entered by Steven Holland on 01.10.1999