Horse Race Quarry, Gill: Hettangian - Sinemurian, Massachusetts
collected by Deane & Hitchcock 1830-1840

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Palaephemera mediaeva
Hitchcock 1865 4 specimens
Hoplichnus equus n. gen., n. sp. Hitchcock 1858
Hitchcock 1858
Reptilia
Ornithopus gallinaceus Hitchcock 1845
Hitchcock 1848 4 specimens
synonym of Sillimanius tetradactylus
Ornithopus loripes Hitchcock 1848
Hitchcock 1848
synonym of Steropoides divaricatus
Tridentipes insignis Hitchcock 1858
Hitchcock 1858
synonym of Steropoides divaricatus
Ornithoidichnites elegantior Hitchcock 1841
Hitchcock 1841
synonym of Steropoides infelix
Ornithichnites diversus Hitchcock 1836
Buckland 1836 10 individuals
recombined as Steropoides diversus
Ornithoidichnites elegans Hitchcock 1841
Hitchcock 1841 1 specimen
synonym of Steropoides diversus
Ornithoidichnites ingens n. sp. (Hitchcock 1836)
Hitchcock 1848 7 specimens
recombined as Steropoides ingens
Ornithichnites ingens Hitchcock 1836
Buckland 1836 1 individual
recombined as Steropoides ingens
Reptilia - Batrachopodidae
Ornithoidichnites rogersi n. sp. Hitchcock 1843
Hitchcock 1843
synonym of Batrachopus deweyi
Macropterna rhynchosauroidea Hitchcock 1848
Hitchcock 1848
synonym of Batrachopus deweyi
Macropterna vulgaris Hitchcock 1858
Hitchcock 1865 1 specimen
synonym of Batrachopus deweyi
Macropterna divaricans Hitchcock 1848
Hitchcock 1865 3 specimens
recombined as Palamopus divaricans
Sauroidichnites palmatus n. sp. Hitchcock 1836
Hitchcock 1841
synonym of Palamopus anomalus
Anisopus gracilis (Hitchcock 1845)
Hitchcock 1865 99 specimens
original and current combination Batrachopus gracilis
Reptilia - Moyenisauropodidae
Anomoepus crassus (Hitchcock 1889)
Lull 1953
Corvipes lacertoideus Hitchcock 1858
Hitchcock 1865 1 specimen
recombined as Anomoepus lacertoideus
Reptilia - Grallatoridae
Grallator cuneatus Hitchcock 1858
Lull 1915
synonym of Grallator tenuis
Anchisauripus hitchcocki Lull 1904
Lull 1953
synonym of Grallator tenuis
Grallator parallelus (Hitchcock 1837)
Hitchcock 1865 1 specimen
synonym of Grallator cursorius
Ornithichnites tuberosus Hitchcock 1836
recombined as Grallator tuberosus
Brontozoum validum Hitchcock 1858
Hitchcock 1865 3 specimens
synonym of Grallator tuberosus
Brontozoum exsertum Hitchcock 1858
Hitchcock 1865 1 specimen
synonym of Grallator tuberosus
Brontozoum minusculum (Hitchcock 1837)
Hitchcock 1865 1 specimen
recombined as Eubrontes minusculus
Brontozoum sillimanium (Hitchcock 1843)
Hitchcock 1865 31 specimens
recombined as Eubrontes sillimani
Brontozoum giganteum (Hitchcock 1836)
Hitchcock 1848 2 specimens
recombined as Eubrontes giganteus
Brontozoum approximatum Hitchcock 1865
Hitchcock 1865 1 specimen
synonym of Eubrontes giganteus
Brontozoum divaricatum n. sp. Hitchcock 1865
Hitchcock 1865 2 specimens
synonym of Eubrontes giganteus
Reptilia - Otozoidae
Otozoum minus n. sp. Lull 1915
Lull 1915
Reptilia
Ornithichnites minimus Hitchcock 1836
Buckland 1836 1 individual
recombined as Argoides minimus
Argozoum paridigitatum Hitchcock 1848
Hitchcock 1848 2 specimens
synonym of Argoides minimus
Sauroidichnites tenuissimus Hitchcock 1837
Hitchcock 1841 1 specimen
recombined as Harpedactylus tenuissimus
Harpedactylus gracilis Hitchcock 1848
Hitchcock 1848
synonym of Harpedactylus tenuissimus
Harpedactylus concameratus Hitchcock 1848
Hitchcock 1848 2 specimens
recombined as Platypterna concamerata
Harpedactylus rectus Hitchcock 1848
Hitchcock 1848
recombined as Platypterna recta
unclassified
Sauroidichnites abnormis n. sp. Hitchcock 1844
Hitchcock 1844
recombined as Typopus abnormis
Unisulcus marshi
Hitchcock 1865 1 specimen
synonym of Herpystezoum
Unisulcus minutus
Hitchcock 1865 1 specimen
synonym of Herpystezoum
Unisulcus intermedius
Hitchcock 1865 108 specimens
synonym of Herpystezoum
see common names

Geography
Country:United States State/province:Massachusetts County:Franklin
Coordinates: 42.6° North, 72.5° West (view map)
Paleocoordinates:24.3° North, 18.6° West
Basis of coordinate:based on nearby landmark
Altitude:79 meters
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Early/Lower Jurassic
10 m.y. bin:Jurassic 1
Key time interval:Hettangian - Sinemurian
Age range of interval:201.30000 - 190.80000 m.y. ago
Stratigraphy
Geological group:Agawam Formation:Portland
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:micaceous,gray sandstone
Secondary lithology: "shale"
Includes fossils?Y
Includes fossils?Y
Lithology description: 'shale' and gray micaceous sandstone
Environment:terrestrial indet.
Taphonomy
Modes of preservation:cast,mold/impression,trace
Degree of concentration:-multiple events
Size of fossils:macrofossils
Spatial orientation:life position
Preservation of anatomical detail:good
Associated major elements:many
Disassociated major elements:many
Temporal resolution:time-averaged
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),peel or thin section,field collection,observed (not collected)
Reason for describing collection:taxonomic analysis
Collectors:Deane & Hitchcock Collection dates:1830s-1840s
Metadata
Also known as:The Race
Database number:52985
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2005-08-30 10:48:51 Last modified:2020-02-14 16:11:00
Access level:the public Released:2005-08-30 10:48:51
Creative Commons license:CC BY
Reference information

Primary reference:

14325.ETE 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]

Secondary references:

31171ETE W. Buckland. 1836. Geology and Mineralogy Considered with Reference to Natural Theology, Volume II. William Pickering, London 1-128 [M. Carrano/M. Carrano/M. Carrano]
57057 J. Deane. 1861. A memoir upon the fossil footprints and other impressions of the Connecticut River sandstone. Ichnographs from the Sandstone of Connecticut River 19-61 [M. Carrano/M. Carrano/M. Carrano]
30862ETE C. H. Hitchcock. 1865. Appendix [B]. Descriptive catalogue of the specimens in the Hitchcock Ichnological Cabinet of Amherst College. In C. H. Hitchcock (ed.), Supplement to the Ichnology of New England. A Report to the Government of Massachusetts in 1863 43-96 [M. Carrano/M. Carrano/M. Carrano]
71713 C. H. Hitchcock and N. M. Grier. 1927. The Hitchcock Lecture upon ichnology, and the Dartmouth College ichnological collection. The American Midland Naturalist 10(7):161-197 [M. Carrano/M. Carrano]
71650 E. Hitchcock. 1836. Beschreibung der Fuss-Spuren von Vögeln (Ornithichnites) [Description of the footprints of birds (Ornithichnites)]. Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrfakten-Kunde 1836:467-472 [M. Carrano/M. Carrano]
69420 E. Hitchcock. 1841. Final Report on the Geology of Massachusetts xii-831 [M. Carrano/M. Carrano]
51495 E. Hitchcock. 1843. Description of five new specie of fossil footmarks, from the red sandstone of the valley of the Connecticut River. Reports of the First, Second, and Third Meetings of the Association of American Geologists and Naturalists 1843:254-264 [M. Carrano/M. Carrano]
23652ETE E. Hitchcock. 1844. Report on ichnolithology, or fossil footmarks, with a description of several new species, and the coprolites of birds, from the valley of Connecticut River, and of a supposed footmark from the valley of Hudson River. The American Journal of Science and Arts 47(2):292-322 [M. Carrano/M. Carrano]
30909 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]
29531ETE E. Hitchcock. 1858. Ichnology of New England. A Report on the Sandstone of the Connecticut Valley, Especially its Fossil Footmarks, Made to the Government of the Commonwealth of Massachusetts xii-214 [M. Carrano/M. Carrano/M. Carrano]
30860ETE E. Hitchcock. 1865. Supplement to the ichnology of New England. In C. H. Hitchcock (ed.), Supplement to the Ichnology of New England. A Report to the Government of Massachusetts in 1863 1-37 [M. Carrano/M. Carrano/M. Carrano]
15230ETE R. S. Lull. 1904. Fossil footprints of the Jura-Trias of North America. Memoirs of the Boston Society of Natural History 5(11):461-557 [M. Carrano/M. Carrano/M. Carrano]
14628ETE R. S. Lull. 1915. Triassic life of the Connecticut Valley. State of Connecticut State Geological and Natural History Survey Bulletin 24:1-285 [M. Carrano/M. Carrano/M. Carrano]
14321ETE R. S. Lull. 1953. Triassic life of the Connecticut Valley (revised). State of Connecticut State Geological and Natural History Survey Bulletin 81:1-336 [M. Carrano/M. Carrano/M. Carrano]
60844 R. T. McCrea, D. H. Tanke, L. G. Buckley, M. G. Lockley, J. O. Farlow, L. Xing, N. A. Matthews, C. W. Helm, S. G. Pemberton and B. H. Breithaupt. 2015. Vertebrate ichnopathology: pathologies inferred from dinosaur tracks and trackways from the Mesozoic. Ichnos 22(3–4):235-260 [M. Carrano/M. Carrano]
17178ETE E. C. Rainforth. 2003. Revision and re-evaluation of the Early Jurassic dinosaurian ichnogenus Otozoum. Palaeontology 46(4):803-838 [M. Carrano/M. Carrano]
68227 T. C. Winkler. 1886. Histoire de l’Ichnologie. Étude Ichnologique sur les Empreintes de Pas d’Animaux Fossiles, Suivie de la Description des Plaques à Impressions d’Animaux qui se Trouvent au Musée Teyler [History of Ichnology. Ichnological Study of Fossil Animal Footprints, Followed by the Description of Slabs with Animal Impressions found in Teyler’s Museum] iv-200 [M. Carrano/M. Carrano]