Ashael Lyman's, Northampton tracksite: Hettangian - Sinemurian, Massachusetts
collected by W. Clark 1848

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Steropoides ingens (Hitchcock 1836)
Lull 1953
Tridentipes ingens (Hitchcock 1836)
Hitchcock 1858 1 specimen
recombined as Steropoides ingens
Tridentipes insignis Hitchcock 1858
Hitchcock 1858
synonym of Steropoides divaricatus
Palamopus clarki n. gen., n. sp. Hitchcock 1858
Hitchcock 1858 1 specimen
synonym of Polemarchus dananus
Reptilia - Grallatoridae
Ornithoidichnites expansus Hitchcock 1841
Hitchcock 1841
recombined as Eubrontes expansus
Ornithichnites giganteus n. gen., n. sp. Hitchcock 1836
recombined as Eubrontes giganteus
AC 15/3
Brontozoum approximatum Hitchcock 1865
Hitchcock 1865 2 specimens
synonym of Eubrontes giganteus
Brontozoum isodactylum Hitchcock 1858
Hitchcock 1858
synonym of Eubrontes
Brontozoum ? tuberatum Hitchcock 1858
Hitchcock 1865 1 specimen
synonym of Eubrontes minusculus
Brontozoum sillimanium (Hitchcock 1843)
Hitchcock 1848
recombined as Eubrontes sillimani
Ornithichnites tuberosus Hitchcock 1836
recombined as Grallator tuberosus
Brontozoum loxonyx Hitchcock 1848
Hitchcock 1848
synonym of Grallator tuberosus
Brontozoum exsertum n. sp. Hitchcock 1858
Hitchcock 1858 1 specimen
synonym of Grallator tuberosus
Brontozoum validum Hitchcock 1858
Hitchcock 1858 1 specimen
synonym of Grallator tuberosus
Reptilia - Moyenisauropodidae
Anomoepus sp. Hitchcock 1848
Getty 2004
see common names

Geography
Country:United States State/province:Massachusetts County:Hampden
Coordinates: 42.3° North, 72.6° West (view map)
Paleocoordinates:24.0° North, 18.7° West
Basis of coordinate:stated in text
Altitude:43 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:201.40000 - 192.90000 m.y. ago
Stratigraphy
Geological group:Agawam Formation:Portland
Stratigraphic resolution:group of beds
Stratigraphy comments: basal part of formation
Lithology and environment
Primary lithology:gray,red sandstone
Secondary lithology: mudstone
Includes fossils?Y
Lithology description: "variegated red and gray flaggy sandstone and mudstone"
Environment:lacustrine - small
Geology comments: shallow lake and playa
Taphonomy
Modes of preservation:cast,mold/impression,trace
Degree of concentration:concentrated
Size of fossils:macrofossils
Spatial orientation:life position
Preservation of anatomical detail:good
Disassociated major elements:some
Disassociated minor elements:some
Temporal resolution:snapshot
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),field collection,observed (not collected)
Reason for describing collection:general faunal/floral analysis
Collectors:W. Clark Collection dates:1848
Metadata
Also known as:Mt. Tom East, Dinosaur Footprint Reservation, Holyoke Footprint Preserve, Lull 19, Mount Tom
Database number:53025
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2005-09-01 13:06:39 Last modified:2022-08-29 20:10:30
Access level:the public Released:2005-09-01 13:06:39
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]
25709ETE P. M. Galton and J. O. Farlow. 2003. Dinosaur State Park, Connecticut, USA: history, footprints, trackways, exhibits. Zubía 21:129-173 [M. Carrano/M. Carrano]
16826ETE P. Getty. 2004. Ornithischian ichnites from Dinosaur Footprint Reservation (Lower Jurassic Portland Formation), Holyoke, MA. Journal of Vertebrate Paleontology 24(3, suppl.):63A [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]
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]
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]
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]
53034 B. S. Lyman. 1894. Some New Red horizons. Proceedings of the American Philosophical Society 33:192-215 [M. Carrano/M. Carrano]
18115ETE P. E. Olsen. 2005. Field Guide for Non-marine Boundary Events in the Newark Basin (New Jersey, Pennsylvania, and Connecticut), Eastern United States and their Litho-, Chrono- and Biostratigraphic Context. Guidebooks for Field Workshops of IGCP 458 [M. Carrano/M. Carrano/M. Uhen]
18113ETE P. E. Olsen and E. C. Rainforth. 2003. The Early Jurassic ornithischian dinosaurian ichnogenus Anomoepus. In P. M. LeTourneau & P. E. Olsen (ed.), The Great Rift Valleys of Pangea in Eastern North America, Volume 2: Sedimentology, Stratigraphy, and Paleontology 314-368 [M. Carrano/M. Carrano/M. Carrano]
14770ETE P. E. Olsen, J. B. Smith, and M. G. McDonald. 1998. Type material of the type species of the classic theropod footprint genera Eubrontes, Anchisauripus, and Grallator (Early Jurassic, Hartford and Deerfield Basins, Connecticut and Massachusetts, U.S.A.). Journal of Vertebrate Paleontology 18(3):586-601 [M. Carrano/M. Carrano]
25845ETE B. T. Roach and D. L. Brinkman. 2007. A reevaluation of cooperative pack hunting and gregariousness in Deinonychus antirrhopus and other nonavian theropod dinosaurs. Bulletin of the Peabody Museum of Natural History 48(1):103-138 [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]