Ashael Lyman's, Northampton tracksite (Jurassic to of the United States)

Also known as Mt. Tom East, Dinosaur Footprint Reservation, Holyoke Footprint Preserve, Lull 19

Where: Hampden County, Massachusetts (42.3° N, 72.6° W: paleocoordinates 24.0° N, 18.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Portland Formation (Agawam Group), Hettangian to Hettangian (201.3 - 190.8 Ma)

• basal part of formation

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - small; gray, red sandstone and mudstone

• shallow lake and playa
• "variegated red and gray flaggy sandstone and mudstone"

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by W. Clark in 1848

Collection methods: quarrying, surface (in situ),

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: general faunal/floral analysis

PaleoDB collection 53025: authorized by Matthew Carrano, entered by Matthew Carrano on 01.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

"Palamopus clarki n. gen. n. sp." = Eupalamopus dananus4, "Steropoides ingens" = Steropoides ingens6, "Tridentipes ingens" = Steropoides ingens4, "Tridentipes insignis" = Steropoides loripes4
"Palamopus clarki n. gen. n. sp." = Eupalamopus dananus4 Hitchcock 1848 reptile
"Steropoides ingens" = Steropoides ingens6 Hitchcock 1836 dinosaur
"Tridentipes ingens" = Steropoides ingens4 Hitchcock 1836 dinosaur
"Tridentipes insignis" = Steropoides loripes4 Hitchcock 1848 dinosaur
 Saurischia - Eubrontidae
"Ornithichnites giganteus n. gen. n. sp." = Eubrontes giganteus, "Ornithoidichnites expansus" = Brontozoum expansum2, Brontozoum isodactylum4, "Brontozoum approximatum" = Eubrontes (Brontozoum) approximatus5, "Brontozoum ? tuberatum" = Eubrontes tuberatus5, "Brontozoum sillimanium" = Eubrontes sillimani3, "Ornithichnites tuberosus" = Anchisauripus tuberosus, "Brontozoum loxonyx" = Anchisauripus tuberosus3, "Brontozoum validum" = Anchisauripus tuberosus4, "Brontozoum exsertum n. sp." = Anchisauripus exsertus4
"Ornithichnites giganteus n. gen. n. sp." = Eubrontes giganteus Hitchcock 1836 theropod
AC 15/3
"Ornithoidichnites expansus" = Brontozoum expansum2 Hitchcock 1841 theropod
Brontozoum isodactylum4 Hitchcock 1858 theropod
"Brontozoum approximatum" = Eubrontes (Brontozoum) approximatus5 Hitchcock 1865 theropod
"Brontozoum ? tuberatum" = Eubrontes tuberatus5 Hitchcock 1858 theropod
"Brontozoum sillimanium" = Eubrontes sillimani3 Hitchcock 1843 theropod
"Ornithichnites tuberosus" = Anchisauripus tuberosus Hitchcock 1836 theropod
"Brontozoum loxonyx" = Anchisauripus tuberosus3 Hitchcock 1836 theropod
"Brontozoum validum" = Anchisauripus tuberosus4 Hitchcock 1836 theropod
"Brontozoum exsertum n. sp." = Anchisauripus exsertus4 Hitchcock 1858 theropod
 Neornithischia - Moyenisauropodidae
Anomoepus sp.1 Hitchcock 1848 bird foot dinosaur