Horse Race Quarry, Gill (Jurassic to of the United States)

Also known as The Race

Where: Franklin County, Massachusetts (42.6° N, 72.5° W: paleocoordinates 24.3° 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: terrestrial; micaceous, gray sandstone and shale

• 'shale' and gray micaceous sandstone

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by Deane & Hitchcock in the 1830s-1840s

Collection methods: quarrying, surface (in situ), peel or thin section,

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 52985: authorized by Matthew Carrano, entered by Matthew Carrano on 30.08.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Palaephemera mediaeva8
Reptilia
  -
"Ornithoidichnites elegantior" = Steropoides infelix2, "Tridentipes insignis" = Steropoides divaricatus6, "Ornithopus loripes" = Steropoides divaricatus5, "Ornithoidichnites ingens n. sp." = Steropoides ingens5, "Ornithichnites ingens" = Steropoides ingens1, "Ornithichnites diversus" = Steropoides diversus1, "Ornithoidichnites elegans" = Steropoides diversus2, "Ornithopus gallinaceus" = Sillimanius tetradactylus5
"Ornithoidichnites elegantior" = Steropoides infelix2 Hay 1902 reptile
"Tridentipes insignis" = Steropoides divaricatus6 Hitchcock 1837 reptile
"Ornithopus loripes" = Steropoides divaricatus5 Hitchcock 1837 reptile
"Ornithoidichnites ingens n. sp." = Steropoides ingens5 Hitchcock 1836 reptile
"Ornithichnites ingens" = Steropoides ingens1 Hitchcock 1836 reptile
"Ornithichnites diversus" = Steropoides diversus1 Hitchcock 1836 reptile
"Ornithoidichnites elegans" = Steropoides diversus2 Hitchcock 1836 reptile
"Ornithopus gallinaceus" = Sillimanius tetradactylus5 Hitchcock 1836 reptile
 Theropoda - Grallatoridae
"Brontozoum sillimanium" = Eubrontes sillimani8, "Brontozoum minusculum" = Eubrontes minusculus8, "Brontozoum giganteum" = Eubrontes giganteus5, "Brontozoum approximatum" = Eubrontes giganteus8, "Brontozoum divaricatum n. sp." = Eubrontes giganteus7, "Grallator cuneatus" = Grallator tenuis9, "Anchisauripus hitchcocki" = Grallator tenuis10, "Ornithichnites tuberosus" = Grallator tuberosus, "Brontozoum validum" = Grallator tuberosus8, "Brontozoum exsertum" = Grallator tuberosus8, "Grallator parallelus" = Grallator cursorius8
"Brontozoum sillimanium" = Eubrontes sillimani8 Hitchcock 1843 theropod
"Brontozoum minusculum" = Eubrontes minusculus8 Hitchcock 1837 theropod
"Brontozoum giganteum" = Eubrontes giganteus5 Hitchcock 1836 theropod
"Brontozoum approximatum" = Eubrontes giganteus8 Hitchcock 1836 theropod
"Brontozoum divaricatum n. sp." = Eubrontes giganteus7 Hitchcock 1836 theropod
"Grallator cuneatus" = Grallator tenuis9 Hitchcock 1858 theropod
"Anchisauripus hitchcocki" = Grallator tenuis10 Hitchcock 1858 theropod
"Ornithichnites tuberosus" = Grallator tuberosus Hitchcock 1836 theropod
"Brontozoum validum" = Grallator tuberosus8 Hitchcock 1836 theropod
"Brontozoum exsertum" = Grallator tuberosus8 Hitchcock 1836 theropod
"Grallator parallelus" = Grallator cursorius8 Hitchcock 1858 theropod
 Ornithischia - Moyenisauropodidae
"Corvipes lacertoideus" = Anomoepus lacertoideus8, Anomoepus crassus10
"Corvipes lacertoideus" = Anomoepus lacertoideus8 Hitchcock 1858 ornithopod
Anomoepus crassus10 Hitchcock 1889 ornithopod
 Saurischia -
"Ornithichnites minimus" = Argoides minimus1, "Argozoum paridigitatum" = Argoides minimus5
"Ornithichnites minimus" = Argoides minimus1 Hitchcock 1836 saurischian
"Argozoum paridigitatum" = Argoides minimus5 Hitchcock 1836 saurischian
 Saurischia - Otozoidae
Otozoum minus n. sp.9
Otozoum minus n. sp.9 Lull 1915 prosauropod
 Saurischia -
"Harpedactylus concameratus" = Platypterna concamerata5, "Harpedactylus rectus" = Platypterna recta5, "Sauroidichnites tenuissimus" = Harpedactylus tenuissimus2, "Harpedactylus gracilis" = Harpedactylus tenuissimus5
"Harpedactylus concameratus" = Platypterna concamerata5 Hitchcock 1848 saurischian
"Harpedactylus rectus" = Platypterna recta5 Hitchcock 1848 saurischian
"Sauroidichnites tenuissimus" = Harpedactylus tenuissimus2 Hitchcock 1837 saurischian
"Harpedactylus gracilis" = Harpedactylus tenuissimus5 Hitchcock 1837 saurischian
 Pseudosuchia - Batrachopodidae
"Anisopus gracilis" = Batrachopus gracilis8, "Ornithoidichnites rogersi n. sp." = Batrachopus deweyi3, "Macropterna vulgaris" = Batrachopus deweyi8, "Macropterna rhynchosauroidea" = Batrachopus deweyi5, "Macropterna divaricans" = Palamopus divaricans8, "Sauroidichnites palmatus n. sp." = Palamopus anomalus2
"Anisopus gracilis" = Batrachopus gracilis8 Hitchcock 1845 aetosaur
"Ornithoidichnites rogersi n. sp." = Batrachopus deweyi3 Hitchcock 1843 aetosaur
"Macropterna vulgaris" = Batrachopus deweyi8 Hitchcock 1843 aetosaur
"Macropterna rhynchosauroidea" = Batrachopus deweyi5 Hitchcock 1843 aetosaur
"Macropterna divaricans" = Palamopus divaricans8 Hitchcock 1848 aetosaur
"Sauroidichnites palmatus n. sp." = Palamopus anomalus2 Hitchcock 1845 aetosaur
Osteichthyes
 Tetrapoda -
"Sauroidichnites abnormis n. sp." = Typopus abnormis4
"Sauroidichnites abnormis n. sp." = Typopus abnormis4 Hitchcock 1844 tetrapod
Hoplichnus
  -
Hoplichnus equus n. gen. n. sp.6
Hoplichnus equus n. gen. n. sp.6 Hitchcock 1858
 Vermes -
"Unisulcus marshi" = Herpystezoum8, "Unisulcus minutus" = Herpystezoum8, "Unisulcus intermedius" = Herpystezoum8
"Unisulcus marshi" = Herpystezoum8
"Unisulcus minutus" = Herpystezoum8
"Unisulcus intermedius" = Herpystezoum8
1Buckland 1836; 2Hitchcock 1841; 3Hitchcock 1843; 4Hitchcock 1844; 5Hitchcock 1848; 6Hitchcock 1858; 7Hitchcock 1865; 8Hitchcock 1865; 9Lull 1915; 10Lull 1953