Where: Hampden County, Massachusetts (42.2° N, 72.7° W: paleocoordinates 23.9° N, 18.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Portland Formation (Agawam Group), Hettangian to Hettangian (201.3 - 190.8 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: fluvial-lacustrine; sandstone
Size class: macrofossils
Preservation: cast, mold/impression, trace
Collection methods: salvage,
• some built into buildings in Holyoke; quarry not exploited scientifically at time of Lull (1953)
Primary reference: R. S. Lull. 1915. Triassic life of the Connecticut Valley. State of Connecticut State Geological and Natural History Survey Bulletin 24:1-285 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 53027: authorized by Matthew Carrano, entered by Matthew Carrano on 01.09.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
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