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Chicopee Falls tracksite (Jurassic to of the United States)

Also known as Chicopee Factories, Lull 25

Where: Hampden County, Massachusetts (42.2° N, 72.6° W: paleocoordinates 23.9° N, 18.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Portland Formation (Agawam Group), Hettangian to Hettangian (201.6 - 189.6 Ma)

• upper part of lower Portland Fm.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - small; lithified, black, calcareous shale and lithified, gray sandstone

• "ephemeral lake or playa existing during the regressive aprt of the lake cycles"
• "hard black shale", calcareous; "dark gray, oscillatory rippled sandy mudstone with the footprints"; hard gray, thick-bedded sandstone

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by J. Bryant, E. Hitchcock

Collection methods: quarrying,

Primary reference: E. Hitchcock. 1841. Final Report on the Geology of Massachusetts xii-831 [M. Carrano/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 53028: authorized by Matthew Carrano, entered by Matthew Carrano on 01.09.2005

Creative Commons license: CC BY (attribution)