Smith Clark's quarry, Milford (level B) (Triassic of the United States)

Where: Hunterdon County, New Jersey (40.6° N, 75.1° W: paleocoordinates 15.1° N, 20.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Perkasie Member (Passaic Formation), Norian (228.0 - 208.5 Ma)

• originally upper part of Brunswick Formation, equivalent to Middle Keuper; 5100 m above base of Triassic

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; gray shale and gray sandstone

• "The sandstone overlying the recording surface...quarries out in layered flagstones 1.5 to 3.5 cm. thick; the flat upper surfaces typically bear shallow ripples and run-off marks. Shrinkage cracks of variable width are common. Raindrops have pitted both ground surface and footprints." Otherwise similar to level A sediments (gray shale and gray sandstone)

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by S. Clark, J. Eyerman in 1885-1887; reposited in the AMNH, MCZ

Collection methods: quarrying, surface (in situ),

• collected by John Eyerman

Primary reference: J. Eyerman. 1886. Footprints on the Triassic sandstone (Jura-Trias) of New Jersey. The American Journal of Science, series 3 31(181):72 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 46622: authorized by Matthew Carrano, entered by Matthew Carrano on 21.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
? Arthropoda indet.1 Latreille 1829
Annelida indet.1 Lamarck 1809
Reptilia
  - Rhynchosauroidae
Rhynchosauroides sp.1 Maidwell 1911 reptile
ANSP; MCZ 213
Rhynchosauroides hyperbates n. sp.1 Baird 1957 reptile
ANSP 15210; MCZ 210
 Dinosauria -
Dinosauria indet.1 dinosaur
"genus incertum"; MCZ 214
 Saurischia -
"Argozoum disparidigitatum" = Argoides macrodactylus4
"Argozoum disparidigitatum" = Argoides macrodactylus4 Hitchcock 1841 saurischian
 Saurischia - Sauropodidae
Chimaerichnus ingens n. sp.4 Hitchcock 1889 theropod
 Saurischia - Eubrontidae
"Anchisauripus parallelus" = Eubrontes cursorius1, "Gigandipus milfordensis n. sp." = Anchisauripus milfordensis2, "Anchisauripus milfordensis" = Anchisauripus milfordensis1
"Anchisauripus parallelus" = Eubrontes cursorius1 Hitchcock 1858 theropod
AMNH 1789
"Gigandipus milfordensis n. sp." = Anchisauripus milfordensis2 Bock 1952 theropod
LC S488; MCZ 135, 229; AMNH 1981, 1984
"Anchisauripus milfordensis" = Anchisauripus milfordensis1 Bock 1952 theropod
 Pseudosuchia - Chirotheriidae
Chirotherium eyermani n. sp.1, Chirotherium copei n. sp.2, "Otozoum parvum n. sp." = Chirotherium parvum4
Chirotherium eyermani n. sp.1 Baird 1957 archosaur
MCZ 134
Chirotherium copei n. sp.2 Bock 1952 archosaur
ANSP 15210
"Otozoum parvum n. sp." = Chirotherium parvum4 Hitchcock 1889 archosaur
LC S488; MCZ 211; ANSP 15210 + MCZ 209-210 + AMNH 2257
 Phytosauria - Parasuchidae
"Apatopus lineatus" = Apatopus lineatus1, "? Otozoum lineatus n. sp." = Apatopus lineatus2
"Apatopus lineatus" = Apatopus lineatus1 Bock 1952 archosaur
"? Otozoum lineatus n. sp." = Apatopus lineatus2 Bock 1952 archosaur
LC S489-490; MCZ 213-214; AMNH 1789, 2258-9
 Vermes -
"Unisulcus magnus" = Herpystezoum4, "Unisulcus minutus" = Herpystezoum3, "Unisulcus marshi" = Herpystezoum3
"Unisulcus magnus" = Herpystezoum4
"Unisulcus minutus" = Herpystezoum3
"Unisulcus marshi" = Herpystezoum3