Wethersfield tracksite (Jurassic to of the United States)

Also known as Lull 34, 35

Where: Middlesex County, Connecticut (41.7° N, 72.6° W: paleocoordinates 23.4° 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; gray, red shale and micaceous sandstone

• red and gray 'shale', micaceous sandstone

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by Hitchcock, Marsh in the 1840s-1870s

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: taxonomic analysis

PaleoDB collection 53023: authorized by Matthew Carrano, entered by Matthew Carrano on 01.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
  -
"Ornithoidichnites tetradactylus n. sp." = Sillimanius tetradactylus, "Ornithopus gallinaceus" = Sillimanius tetradactylus3
"Ornithoidichnites tetradactylus n. sp." = Sillimanius tetradactylus Hitchcock 1836 reptile
"Ornithopus gallinaceus" = Sillimanius tetradactylus3 Hitchcock 1836 reptile
 Saurischia -
"Harpedactylus sp." = Platypterna4, "Sauroidichnites tenuissimus n. sp." = Harpedactylus tenuissimus2, Platypterna tenuis4, "Ornithoidichnites deanii" = Platypterna deanii4, "Plesiornis aequalipes n. sp." = Argoides minimus3, "Argozoum paridigitatum" = Argoides minimus3, "Ornithoidichnites macrodactylus n. sp." = Argoides macrodactylus1, "Argozoum disparidigitatum" = Argoides macrodactylus3
"Harpedactylus sp." = Platypterna4 Hitchcock 1845 saurischian
"Sauroidichnites tenuissimus n. sp." = Harpedactylus tenuissimus2 Hitchcock 1837 saurischian
Platypterna tenuis4 Hitchcock 1837 saurischian
"Ornithoidichnites deanii" = Platypterna deanii4 Hitchcock 1837 saurischian
"Plesiornis aequalipes n. sp." = Argoides minimus3 Hitchcock 1836 saurischian
"Argozoum paridigitatum" = Argoides minimus3 Hitchcock 1836 saurischian
"Ornithoidichnites macrodactylus n. sp." = Argoides macrodactylus1 Hitchcock 1841 saurischian
"Argozoum disparidigitatum" = Argoides macrodactylus3 Hitchcock 1841 saurischian
 Ornithischia - Moyenisauropodidae
"Corvipes lacertoideus" = Anomoepus lacertoideus6, "Anomoepus gracillimus" = Anomoepus scambus4
"Corvipes lacertoideus" = Anomoepus lacertoideus6 Hitchcock 1858 ornithopod
"Anomoepus gracillimus" = Anomoepus scambus4 Hitchcock 1848 ornithopod
  -
Plectropterna sp.4 Hitchcock 1845 dinosaur
minitans or gracilis
Plectropterna minitans2 Hitchcock 1837 dinosaur
Plectropterna ? minitans4 Hitchcock 1837 dinosaur
Plectropterna gracilis4 Hitchcock 1858 dinosaur
Plectropterna lineans4 Hitchcock 1858 dinosaur
Plectropterna elegans n. sp.5 Hitchcock 1889 dinosaur
 Theropoda - Grallatoridae
"Brontozoum sillimanium" = Eubrontes sillimani4, "Brontozoum ? sillimanium" = Eubrontes sillimani4, "Eubrontes giganteus" = Eubrontes giganteus6, "Eubrontes divaricatus" = Eubrontes giganteus6, "Anchisauripus tuberosus" = Grallator tuberosus6, "Anchisauripus exsertus" = Grallator tuberosus6, Grallator cursorius3, "Grallator tenuis" = Grallator tenuis6, "Grallator cuneatus" = Grallator tenuis4, "Grallator formosus" = Grallator tenuis4
"Brontozoum sillimanium" = Eubrontes sillimani4 Hitchcock 1843 theropod
"Brontozoum ? sillimanium" = Eubrontes sillimani4 Hitchcock 1843 theropod
"Eubrontes giganteus" = Eubrontes giganteus6 Hitchcock 1836 theropod
"Eubrontes divaricatus" = Eubrontes giganteus6 Hitchcock 1836 theropod
"Anchisauripus tuberosus" = Grallator tuberosus6 Hitchcock 1836 theropod
"Anchisauripus exsertus" = Grallator tuberosus6 Hitchcock 1836 theropod
Grallator cursorius3 Hitchcock 1858 theropod
"Grallator tenuis" = Grallator tenuis6 Hitchcock 1858 theropod
"Grallator cuneatus" = Grallator tenuis4 Hitchcock 1858 theropod
"Grallator formosus" = Grallator tenuis4 Hitchcock 1858 theropod
 Pseudosuchia - Batrachopodidae
"Palamopus rogersi" = Batrachopus deweyi6, "Macropterna rhynchosauroidea" = Batrachopus deweyi2, "Macropterna vulgaris" = Batrachopus deweyi4, "Exocampe ornata" = Batrachopus deweyi7, "Arachichnus dehiscens" = Batrachopus deweyi7, "Macropterna divaricans" = Palamopus divaricans3
"Palamopus rogersi" = Batrachopus deweyi6 Hitchcock 1843 aetosaur
"Macropterna rhynchosauroidea" = Batrachopus deweyi2 Hitchcock 1843 aetosaur
"Macropterna vulgaris" = Batrachopus deweyi4 Hitchcock 1843 aetosaur
"Exocampe ornata" = Batrachopus deweyi7 Hitchcock 1843 aetosaur
"Arachichnus dehiscens" = Batrachopus deweyi7 Hitchcock 1843 aetosaur
"Macropterna divaricans" = Palamopus divaricans3 Hitchcock 1848 aetosaur
 Testudinata -
"Sauroidichnites heteroclitus" = Ancyropus heteroclitus4
"Sauroidichnites heteroclitus" = Ancyropus heteroclitus4 Hitchcock 1841 turtle
  -
Steropoides diversus6, Steropoides infelix6, "Steropoides divaricatus" = Steropoides divaricatus7, "Ornithopus loripes" = Steropoides divaricatus2, "Tridentipes insignis" = Steropoides divaricatus3
Steropoides diversus6 Hitchcock 1836 reptile
Steropoides infelix6 Hay 1902 reptile
"Steropoides divaricatus" = Steropoides divaricatus7 Hitchcock 1837 reptile
"Ornithopus loripes" = Steropoides divaricatus2 Hitchcock 1837 reptile
"Tridentipes insignis" = Steropoides divaricatus3 Hitchcock 1837 reptile
Amphibia
 Labyrinthodontia -
"Sauroidichnites emmonsii n. sp." = Triaenopus emmonsii1, "Sauroidichnites baileyi n. sp." = Triaenopus emmonsii1
"Sauroidichnites emmonsii n. sp." = Triaenopus emmonsii1 Hitchcock 1841 tetrapod
later renamed Triaenopus leptodactylus
"Sauroidichnites baileyi n. sp." = Triaenopus emmonsii1 Hitchcock 1841 tetrapod
later renamed Triaenopus leptodactylus
Ichnolites
 Dipodichnites -