Montague City (Jurassic to of the United States)

Also known as Lull 7

Where: Franklin County, Massachusetts (42.6° N, 72.6° W: paleocoordinates 24.3° 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; micaceous, gray, red sandstone

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by Hitchcock in the 1830s

Collection methods: quarrying, surface (in situ), peel or thin section,

Primary reference: E. Hitchcock. 1836. Ornithichnology - description of the foot marks of birds, (Ornithichnites) on new Red Sandstone in Massachusetts. The American Journal of Science and Arts 29(2):307-340 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52990: authorized by Matthew Carrano, entered by Matthew Carrano on 30.08.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Ornithopus adamsanus n. sp.1, "Tridentipes ingens" = Steropoides ingens2, "Steropezoum elegans" = Steropoides elegans1
Ornithopus adamsanus n. sp.1 Hitchcock 1848 dinosaur
"Tridentipes ingens" = Steropoides ingens2 Hitchcock 1836 dinosaur
"Steropezoum elegans" = Steropoides elegans1 Hitchcock 1841 dinosaur