tracksite below Smith's Ferry, Northampton (Jurassic to of the United States)

Also known as Lull 20

Where: Hampshire 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 (201.3 - 190.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithified, micaceous, gray sandstone

• hard, gray micaceous sandstone

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected in 1840-1855

Collection methods: surface (in situ), mechanical,

Primary reference: E. Hitchcock. 1848. An attempt to discriminate and describe the animals that made the fossil footmarks of the United States, and especially of New England. Memoirs of the American Academy of Arts and Sciences, new series 3:129-256 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 62844: authorized by Matthew Carrano, entered by Matthew Carrano on 28.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

"Palamopus dananus" = Eupalamopus dananus, "Tridentipes insignis" = Steropoides loripes
"Palamopus dananus" = Eupalamopus dananus Hitchcock 1848 reptile
"Tridentipes insignis" = Steropoides loripes Hitchcock 1848 dinosaur
 Saurischia - Eubrontidae
"Brontozoum giganteum" = Eubrontes giganteus, "Brontozoum ? sillimaniium" = Grallator (Eubrontes), "Brontozoum approximatum" = Eubrontes (Brontozoum) approximatus, Grallator cuneatus, Grallator formosus, "Brontozoum divaricatum" = Grallator (Eubrontes) divaricatus, "Brontozoum validum" = Anchisauripus tuberosus, "Brontozoum minusculum" = Grallator (Anchisauripus) minusculus, "Brontozoum exsertum" = Anchisauripus exsertus
"Brontozoum giganteum" = Eubrontes giganteus Hitchcock 1836 theropod
"Brontozoum ? sillimaniium" = Grallator (Eubrontes) theropod
"Brontozoum approximatum" = Eubrontes (Brontozoum) approximatus Hitchcock 1865 theropod
Grallator cuneatus Hitchcock 1858 theropod
Grallator formosus Hitchcock 1858 theropod
"Brontozoum divaricatum" = Grallator (Eubrontes) divaricatus Hitchcock 1865 theropod
"Brontozoum validum" = Anchisauripus tuberosus Hitchcock 1836 theropod
"Brontozoum minusculum" = Grallator (Anchisauripus) minusculus Hitchcock 1837 theropod
"Brontozoum exsertum" = Anchisauripus exsertus Hitchcock 1858 theropod
 Saurischia -
Platypterna varica Hitchcock 1858 saurischian