Where: Massachusetts (42.0° N, 71.3° W: paleocoordinates 68.0° S, 65.4° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Callavia trilobite zone, Upper Member (Weymouth Formation), Branchian (517.1 - 509.0 Ma)

• Botomian; Callavia zone. PJW: given as lower member, but Callavia zone starts in the Upper Member

• bed-level stratigraphic resolution

Environment/lithology: lithified, red, argillaceous wackestone

Size class: macrofossils

Collection methods: bulk, chemical

Primary reference: E. Landing. 1988. Lower Cambrian of eastern Massachusetts: stratigraphy and small shelly fossils. Journal of Paleontology 62(5):661-695 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 56838: authorized by Pete Wagner, entered by Pete Wagner on 26.11.2005

Creative Commons license: CC BY (attribution)