Also known as Mt. Tom East, Dinosaur Footprint Reservation, Holyoke Footprint Preserve, Lull 19, Mount Tom
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
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
Reptilia | |
"Palamopus clarki n. gen. n. sp." = Polemarchus dananus4
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"Ornithichnites tuberosus" = Grallator tuberosus, "Brontozoum exsertum n. sp." = Grallator tuberosus4, "Brontozoum validum" = Grallator tuberosus4, "Brontozoum loxonyx" = Grallator tuberosus3, "Ornithoidichnites expansus" = Eubrontes expansus2, "Brontozoum sillimanium" = Eubrontes sillimani3, "Ornithichnites giganteus n. gen. n. sp." = Eubrontes giganteus, "Brontozoum approximatum" = Eubrontes giganteus5, "Brontozoum ? tuberatum" = Eubrontes minusculus5, Brontozoum isodactylum4
"Ornithichnites tuberosus" = Grallator tuberosus Hitchcock 1836 theropod | |
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"Steropoides ingens" = Steropoides ingens6, "Tridentipes ingens" = Steropoides ingens4, "Tridentipes insignis" = Steropoides divaricatus4
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