Trostle Quarry (tracks) (Triassic of the United States)

Also known as York Springs

Where: Adams County, Pennsylvania (40.0° N, 77.1° W: paleocoordinates 14.4° N, 21.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Heidlersburg Member (Gettysburg Formation), Norian (228.0 - 208.5 Ma)

• Approx. 6000 m above the base of the New Oxford Formation, 3900 m below the base of the Jurassic Aspers Basalt and within 450 m of the base of the Heidlersburg Member.

• member-level stratigraphic resolution

Environment/lithology: terrestrial; gray, green siltstone and gray, green sandstone

• sandstone and siltstone blocks with footprints; "greenish-grey shales and sandstones"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by E. R. Haile in 1937; reposited in the CM

Collection methods: quarrying, surface (in situ), mechanical,

• "These tracks were discovered by an engineer employed by the Bureau of Public Roads, Mr. Elmer R. Haile, Jr., while he was supervising excavations."

Primary reference: A. Avinoff. 1937. Vertebrate Paleontology. Fortieth Annual Report of the Carnegie Museum for the Year Ended December 31, 1937 31-34 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55414: authorized by Matthew Carrano, entered by Kaitlin Maguire on 20.10.2005, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

  - Rhynchosauroidae
Rhynchosauroides brunswickii3 Ryan and Willard 1947 reptile
 Saurischia - Otozoidae
? Otozoum minus2 Lull 1915 prosauropod
 Saurischia - Eubrontidae
Grallator tenuis2, "Anchisauripus sillimani" = Eubrontes sillimani2, "Atreipus milfordensis" = Anchisauripus milfordensis3
Grallator tenuis2 Hitchcock 1858 theropod
"Anchisauripus sillimani" = Eubrontes sillimani2 Hitchcock 1843 theropod
"Atreipus milfordensis" = Anchisauripus milfordensis3 Bock 1952 theropod
CM 12081 and 12087
 Neornithischia - Moyenisauropodidae
Anomoepus sp.1 Hitchcock 1848 bird foot dinosaur
 Pseudosuchia - Chirotheriidae
"Brachychirotherium eyermani" = Chirotherium eyermani3
"Brachychirotherium eyermani" = Chirotherium eyermani3 Baird 1957 archosaur
 Ichnofossils -
Scoyenia sp.3 White 1929