Upper Strickland Creek Quarry (Jurassic of the United States)

Also known as MT-2, O'Hair Quarry

Where: Park County, Montana (45.5° N, 110.6° W: paleocoordinates 41.1° N, 54.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Morrison Formation, Kimmeridgian (157.3 - 152.1 Ma)

• bed-level stratigraphic resolution

Environment/lithology: coarse channel fill; fine-grained, conglomeratic sandstone and gray siltstone

• poorly drained floodplain
• "dull gray and purplish siltstones interbedded with laterally discontinuous fine-grained to conglomeratic sandstones. The uppermost sandstone contains decimeter-scale trough cross-beds and ripple cross-lamination in its upper parts."

Size class: macrofossils

Collected in 1995–2015

Collection methods: quarrying,

Primary reference: J. A. Wilson and M. B. Smith. 1996. New remains of Amphicoelias Cope (Dinosauria: Sauropoda) from the Upper Jurassic of Montana and diplodocoid phylogeny. Journal of Vertebrate Paleontology 16(3, suppl.):73A [M. Carrano/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 49624: authorized by Matthew Carrano, entered by Matthew Carrano on 20.04.2005, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Ornithischia - Stegosauridae
Hesperosaurus mjosi2
Hesperosaurus mjosi2 Carpenter et al. 2001 ornithischian
MOR 9728
 Ornithischia -
Ornithopoda indet.2
Ornithopoda indet.2 Marsh 1881 ornithopod
large partial femur, dorsal vertebra; small ischium, phalanges
 Theropoda -
Theropoda indet.2, Allosaurus sp.3
Theropoda indet.2 Marsh 1881 theropod
caudal vertebra
Allosaurus sp.3 Marsh 1877 allosauroid
 Saurischia - Camarasauridae
Camarasaurus sp.2
Camarasaurus sp.2 Cope 1877 camarasaurid
 Saurischia - Diplodocidae
Apatosaurus sp.2, Diplodocus sp.1
Apatosaurus sp.2 Marsh 1877 diplodocid
Diplodocus sp.1 Marsh 1878 diplodocine
 Testudines -
"Chelonia indet." = Testudines1
"Chelonia indet." = Testudines1 Batsch 1788 turtle
1Foster 2003; 2Maidment et al. 2018; 3Turner and Peterson 1999