Portland Quarries, tracksite (Jurassic to of the United States)

Also known as Lull 37, brownstone

Where: Middlesex County, Connecticut (41.6° N, 72.6° W: paleocoordinates 23.3° N, 18.6° 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; coarse-grained, gray, red sandstone

• gray and red, coarse micaceous sandstone

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected in 1857

Collection methods: salvage, surface (float),

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: taxonomic analysis

PaleoDB collection 91574: authorized by Matthew Carrano, entered by Matthew Carrano on 02.10.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Hoplichnus equus2 Hitchcock 1858
Isocampe strata2 Hitchcock 1858 reptile
 Saurischia - Otozoidae
Otozoum moodii1 Hitchcock 1847 prosauropod
 Saurischia - Eubrontidae
"Brontozoum giganteum" = Eubrontes giganteus2, Brontozoum isodactylum2, "Brontozoum sillimanium" = Eubrontes sillimani, "Brontozoum divaricatum" = Grallator (Eubrontes) divaricatus3, "Brontozoum validum" = Anchisauripus tuberosus2, "Brontozoum exsertum" = Anchisauripus exsertus2
"Brontozoum giganteum" = Eubrontes giganteus2 Hitchcock 1836 theropod
Brontozoum isodactylum2 Hitchcock 1858 theropod
"Brontozoum sillimanium" = Eubrontes sillimani Hitchcock 1843 theropod
"Brontozoum divaricatum" = Grallator (Eubrontes) divaricatus3 Hitchcock 1865 theropod
"Brontozoum validum" = Anchisauripus tuberosus2 Hitchcock 1836 theropod
"Brontozoum exsertum" = Anchisauripus exsertus2 Hitchcock 1858 theropod
 Neornithischia - Moyenisauropodidae
"Grallator gracillimus" = Anomoepus scambus2
"Grallator gracillimus" = Anomoepus scambus2 Hitchcock 1848 bird foot dinosaur
 Vermes -
"Cunicularis spp." = Cunicularius3
"Cunicularis spp." = Cunicularius3 Hitchcock 1858