Also known as South Hadley canal, Lull 23, Holyoke Dam

Where: Hampden County, Massachusetts (42.2° N, 72.6° W: paleocoordinates 23.9° N, 18.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; shale and red sandstone

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected in 1855

Collection methods: surface (in situ), mechanical,

Primary reference: E. Hitchcock. 1865. Supplement to the ichnology of New England. In C. H. Hitchcock (ed.), Supplement to the Ichnology of New England. A Report to the Government of Massachusetts in 1863. Wright and Potter, Boston 1-37 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 91666: authorized by Matt Carrano, entered by Matt Carrano on 13.10.2009