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

Hoplichnus equus n. gen. n. sp.6
Hoplichnus equus n. gen. n. sp.6 Hitchcock 1858
"Ornithopus gallinaceus" = Sillimanius tetradactylus5, "Ornithoidichnites ingens n. sp." = Steropoides ingens5, "Ornithichnites ingens" = Steropoides ingens1, "Ornithopus loripes" = Steropoides loripes5, "Tridentipes insignis" = Steropoides loripes6, "Ornithoidichnites elegans" = Steropoides elegans2, "Ornithichnites diversus" = Steropoides elegans1, "Ornithoidichnites elegantior" = Steropezoum elegantius2
"Ornithopus gallinaceus" = Sillimanius tetradactylus5 Hitchcock 1836 dinosaur
"Ornithoidichnites ingens n. sp." = Steropoides ingens5 Hitchcock 1836 dinosaur
"Ornithichnites ingens" = Steropoides ingens1 Hitchcock 1836 dinosaur
"Ornithopus loripes" = Steropoides loripes5 Hitchcock 1848 dinosaur
"Tridentipes insignis" = Steropoides loripes6 Hitchcock 1848 dinosaur
"Ornithoidichnites elegans" = Steropoides elegans2 Hitchcock 1841 dinosaur
"Ornithichnites diversus" = Steropoides elegans1 Hitchcock 1841 dinosaur
"Ornithoidichnites elegantior" = Steropezoum elegantius2 Hitchcock 1841 dinosaur
 Saurischia - Otozoidae
Otozoum minus n. sp.9
Otozoum minus n. sp.9 Lull 1915 prosauropod
 Saurischia -
"Ornithichnites minimus" = Argoides minimus1, "Argozoum paridigitatum" = Argoides minimus5
"Ornithichnites minimus" = Argoides minimus1 Hitchcock 1836 saurischian
"Argozoum paridigitatum" = Argoides minimus5 Hitchcock 1836 saurischian
 Saurischia - Eubrontidae
"Brontozoum giganteum" = Eubrontes giganteus5, "Brontozoum approximatum" = Eubrontes (Brontozoum) approximatus8, Grallator cuneatus9, "Brontozoum sillimanium" = Eubrontes sillimani8, "Brontozoum divaricatum n. sp." = Grallator (Eubrontes) divaricatus7, "Grallator parallelus" = Eubrontes cursorius8, "Ornithichnites tuberosus" = Anchisauripus tuberosus, "Brontozoum validum" = Anchisauripus tuberosus8, "Brontozoum minusculum" = Grallator (Anchisauripus) minusculus8, "Anchisauripus hitchcocki" = Grallator (Anchisauripus) hitchcocki10, "Brontozoum exsertum" = Anchisauripus exsertus8
"Brontozoum giganteum" = Eubrontes giganteus5 Hitchcock 1836 theropod
"Brontozoum approximatum" = Eubrontes (Brontozoum) approximatus8 Hitchcock 1865 theropod
Grallator cuneatus9 Hitchcock 1858 theropod
"Brontozoum sillimanium" = Eubrontes sillimani8 Hitchcock 1843 theropod
"Brontozoum divaricatum n. sp." = Grallator (Eubrontes) divaricatus7 Hitchcock 1865 theropod
"Grallator parallelus" = Eubrontes cursorius8 Hitchcock 1858 theropod
"Ornithichnites tuberosus" = Anchisauripus tuberosus Hitchcock 1836 theropod
"Brontozoum validum" = Anchisauripus tuberosus8 Hitchcock 1836 theropod
"Brontozoum minusculum" = Grallator (Anchisauripus) minusculus8 Hitchcock 1837 theropod
"Anchisauripus hitchcocki" = Grallator (Anchisauripus) hitchcocki10 Lull 1904 theropod
"Brontozoum exsertum" = Anchisauripus exsertus8 Hitchcock 1858 theropod
 Saurischia -
"Harpedactylus rectus" = Platypterna recta5, "Harpedactylus concameratus" = Platypterna concamerata5
"Harpedactylus rectus" = Platypterna recta5 Hitchcock 1848 saurischian
"Harpedactylus concameratus" = Platypterna concamerata5 Hitchcock 1848 saurischian
 Neornithischia - Anomoepodidae
Corvipes lacertoideus8 Hitchcock 1858 bird foot dinosaur
 Neornithischia - Moyenisauropodidae
"Anomoepus crassus" = Anomoepus scambus10
"Anomoepus crassus" = Anomoepus scambus10 Hitchcock 1848 bird foot dinosaur
"Sauroidichnites tenuissimus" = Harpedactylus tenuissimus2, "Harpedactylus gracilis" = Harpedactylus tenuissimus5
"Sauroidichnites tenuissimus" = Harpedactylus tenuissimus2 Hitchcock 1837 dinosaur
"Harpedactylus gracilis" = Harpedactylus tenuissimus5 Hitchcock 1837 dinosaur
 Pseudosuchia - Batrachopodidae
"Sauroidichnites palmatus n. sp." = Palamopus anomalus2, "Macropterna divaricans" = Palamopus divaricans8, "Anisopus gracilis" = Batrachopus gracilis8, "Ornithoidichnites rogersi n. sp." = Batrachopus deweyi3, "Macropterna rhynchosauroidea" = Batrachopus deweyi5, "Macropterna vulgaris" = Batrachopus deweyi8
"Sauroidichnites palmatus n. sp." = Palamopus anomalus2 Hitchcock 1845 archosaur
"Macropterna divaricans" = Palamopus divaricans8 Hitchcock 1848 archosaur
"Anisopus gracilis" = Batrachopus gracilis8 Hitchcock 1845 archosaur
"Ornithoidichnites rogersi n. sp." = Batrachopus deweyi3 Hitchcock 1843 archosaur
"Macropterna rhynchosauroidea" = Batrachopus deweyi5 Hitchcock 1843 archosaur
"Macropterna vulgaris" = Batrachopus deweyi8 Hitchcock 1843 archosaur
 Tetrapoda -
"Sauroidichnites abnormis n. sp." = Typopus abnormis4
"Sauroidichnites abnormis n. sp." = Typopus abnormis4 Hitchcock 1844 tetrapod
 Vermes -
"Unisulcus marshi" = Herpystezoum8, "Unisulcus minutus" = Herpystezoum8, "Unisulcus intermedius" = Herpystezoum8
"Unisulcus marshi" = Herpystezoum8
"Unisulcus minutus" = Herpystezoum8
"Unisulcus intermedius" = Herpystezoum8