Springfield Armory (Jurassic to of the United States)

Where: Hampden County, Massachusetts (42.1° N, 72.6° W: paleocoordinates 23.8° N, 18.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Portland Formation (Agawam Group), Hettangian to Hettangian (201.3 - 190.8 Ma)

• also called "Portland beds", Longmeadow Sandstone

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; red sandstone

Size class: macrofossils

Collected by W. Smith in 1855; reposited in the YPM

Collection methods: salvage, mechanical,

• discovered during blasting operations by William Smith, given by General Whitney to Edward Hitchcock for study in October 1855

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 47199: authorized by Matthew Carrano, entered by Matthew Carrano on 18.02.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Saurischia -
"Megadactylus polyzelus n. gen. n. sp." = Anchisaurus polyzelus
"Megadactylus polyzelus n. gen. n. sp." = Anchisaurus polyzelus Hitchcock 1865 saurischian
AM 41/109