Downstream from the Holyoke dam

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Formation

Portland

Geologic interval

Hettangian to Sinemurian

Age

201.4–192.9 Ma

Depositional environment

pond

Tectonic setting

rift

Recorded occurrences

4

Data: Paleobiology Database collection 153642 (CC BY 4.0) — view the source record

• South Hadley Falls tracksite — FossilMA · 0.2 mi
• tracksite below Smith's Ferry, Northampton — FossilMA · 2.2 mi
• Mount Tom, "Ostrom Bed" — FossilMA · 2.4 mi
• south of mill, South Hadley — FossilMA · 2.7 mi
• Boynton farm, South Hadley — FossilMA · 3 mi
• Ashael Lyman's, Northampton tracksite — FossilMA · 3.1 mi

• Ashley Pond quarry, Holyoke footprint site — FossilMA
• Assawompset Pond — FossilMA
• Bassett's Quarry tracksite — FossilMA
• below Turners Falls, tracksite — FossilMA
• Cabotville tracksite — FossilMA
• Chappaquiddick Island — FossilMA

• Amherst — AgateMA
• Barrus Mine pegmatite outcrop — Tourmaline, LepidoliteMA
• Betts Mine (paid area) — RhodoniteMA
• Blandford — Beryl, FeldsparMA
• Bolton Lime Quarry (paid area) — ScapoliteMA
• Chester — Emery, DiasporeMA

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