Martinsburg - Passage Creek - Maysville (Ordovician of the United States)

Where: Warren County, Virginia (38.9° N, 78.2° W: paleocoordinates 29.3° S, 55.9° W)

• outcrop-level geographic resolution

When: Martinsburg Formation, Maysvillian (450.2 - 449.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, hematitic, brown sandstone

• paleoenvironmental interpretation by S.M. Holland
• fine-grained sandstone beds, somewhat arkosic, weathering rusty...thinly laminated...speckled with hematite...massive sandstone with hematite particles

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 5395: authorized by Steven Holland, entered by Steven Holland on 01.10.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Myalinida - Ambonychiidae
"Byssonychia bowmani" = Ambonychia
"Byssonychia bowmani" = Ambonychia clam
Rhynchonellata
 Orthida - Dalmanellidae
"Dalmanella meeki" = Cincinnetina meeki
"Dalmanella meeki" = Cincinnetina meeki Miller 1875
 Atrypida - Anazygidae
Strophomenata
 Strophomenida - Rafinesquinidae
Rafinesquina mediolineata
Rafinesquina alternata mediolineata