Springfield Armory: Hettangian - Sinemurian, Massachusetts
collected by W. Smith 1855
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
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Megadactylus polyzelus n. gen., n. sp.
Hitchcock 1865
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Hitchcock 1865 | 1 individual | ||||||||
recombined as Anchisaurus polyzelus | ||||||||||
AM 41/109 | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Massachusetts | County: | Hampden |
Coordinates: | 42.1° North, 72.6° West (view map) | ||||
Paleocoordinates: | 23.8° North, 18.6° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Altitude: | 26 meters | ||||
Geographic resolution: | small collection |
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
Lithology and environment
Primary lithology: | red sandstone |
Includes fossils? | Y |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Degree of concentration: | dispersed |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | medium |
Articulated whole bodies: | some |
Associated major elements: | some |
Fragmentation: | frequent |
Temporal resolution: | snapshot |
Collection methods and comments
Collection methods: | salvage,mechanical,field collection,survey of museum collection | ||
Reason for describing collection: | taxonomic analysis | ||
Museum repositories: | YPM | ||
Collectors: | W. Smith | Collection dates: | 1855 |
Collection method comments: discovered during blasting operations by William Smith, given by General Whitney to Edward Hitchcock for study in October 1855 |
Metadata
Database number: | 47199 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2005-02-18 08:09:50 | Last modified: | 2023-09-08 14:25:41 |
Access level: | the public | Released: | 2005-02-18 08:09:50 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
23643. | ETE | E. Hitchcock. 1855. Shark remains from the Coal Formation of Illinois, and bones and tracks from the Connecticut River Sandstone. The American Journal of Science and Arts, series 2 20(60):416-417 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
56367 | E. H. Colbert. 1970. Fossils of the Connecticut Valley. The Age of Dinosaurs begins (revised edition). State Geological and Natural History Survey of Connecticut Bulletin 96:iv-32 [M. Carrano/M. Carrano] | |
35435 | E. D. Cope. 1870. Synopsis of the Extinct Batrachia, Reptilia and Aves of North America. Part II. Transactions of the American Philosophical Society, New Series 14:105-235 [M. Carrano/M. Carrano/M. Uhen] | |
12624 | ETE | P. M. Galton. 1976. Prosauropod dinosaurs (Reptilia: Saurischia) of North America. Postilla 169:1-98 [M. Carrano/M. Carrano/M. Carrano] |
64634 | C. H. Hitchcock. 1898. Recent progress in ichnology. In B. K. Emerson (ed.), Geology of Old Hampshire County, Massachusetts Comprising Franklin, Hampshire, and Hampden Counties. Monographs of the United States Geological Survey 29:400-406 [M. Carrano/M. Carrano/M. Carrano] | |
29531 | ETE | 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] |
30861 | ETE | E. Hitchcock. 1865. Appendix [A]. Bones of Megadactylus polyzelus. In C. H. Hitchcock (ed.), Supplement to the Ichnology of New England. A Report to the Government of Massachusetts in 1863 39-40 [M. Carrano/M. Carrano/M. Carrano] |
62966 | F. v. Huene. 1914. I: Animalia. Pars 4. Saurischia et Ornithischia triadica (“Dinosauria” triadica). 1-20 [M. Carrano/M. Carrano] | |
14628 | ETE | 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] |
7819 | O. C. Marsh. 1882. Classification of the Dinosauria. American Journal of Science 23:81-86 [M. Carrano/M. Carrano/M. Carrano] | |
9053 | O. C. Marsh. 1885. Names of extinct reptiles. American Journal of Science 29:169 [M. Carrano/M. Carrano/M. Carrano] | |
17863 | ETE | V. L. Santucci. 1998. Early discoveries of dinosaurs from North America and the significance of the Springfield Armory dinosaur site. In V. L. Santucci & L. McClelland (eds.), National Park Service Geologic Resources Division Technical Report NPS/NRGRD/GRDTR-98/01. National Park Service Paleontological Research Volume 3:152-154 [M. Carrano/M. Carrano] |
81482 | J. S. Tweet and V. L. Santucci. 2011. Anchisaurus from Springfield Armory. In T. Olstad & A. K. Aase (ed.), Proceedings of the 9th Conference on Fossil Resources, Kemmerer, WY. Brigham Young University Geology Studies 49(A):75-82 [M. Carrano/M. Carrano/M. Carrano] | |
84543 | J. S. Tweet and V. L. Santucci. 2018. An inventory of non-avian dinosaurs from National Park Service areas. In S. G. Lucas & R. M. Sullivan (ed.), Fossil Record 6. New Mexico Museum of Natural History and Science Bulletin 79:703-730 [M. Carrano/M. Carrano] | |
85047 | D. B. Weishampel and L. Young. 1996. Dinosaurs of the East Coast xiii-275 [M. Carrano/M. Carrano] | |
80941 | A. M. Yates. 2010. A revision of the problematic sauropodomorph dinosaurs from Manchester, Connecticut and the status of Anchisaurus Marsh. Palaeontology 53(4):739-752 [M. Carrano/M. Carrano] |