Seymour Quarry tracksite (QM) (Cretaceous of Australia)

Also known as Winton

Where: Queensland, Australia (23.1° S, 142.8° E: paleocoordinates 52.8° S, 132.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Winton Formation (Rolling Downs Group), Early/Lower Cenomanian (99.6 - 93.5 Ma)

• same level as Lark Quarry

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; poorly lithified, paleosol/pedogenic, ferruginous, red sandstone and mudstone

• lacustrine origin. "Sandstones above and below the footprint bed probably resulted from periodic sheet-floods...Shrinkage of the lake had exposed extensive mud-flats marked with narrow run-off channels."
• "red arkosic sandstone...This friable sandstone overlies a weathered mudstone, and its lower surface is infiltrated by dark brown ironstone...Traces of plant rootlets."

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by G. Seymour, R. McKenzie, R. Tedford, R. Thulborn, M. Wade in 1967, 1971, 1976

Collection methods: surface (in situ), peel or thin section,

• more than 130 individual dinosaurs

Primary reference: M. Wade. 1979. Tracking dinosaurs: the WInton excavation. Australian Natural History 19(9):286-291 [M. Carrano/M. Carrano]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 62556: authorized by Matthew Carrano, entered by Matthew Carrano on 21.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

 Saurischia -
Skartopus australis Thulborn and Wade 1984 theropod
QM F12265
 Neornithischia -
Wintonopus latomorum Thulborn and Wade 1984 bird foot dinosaur
QM F12264