"Sonorasaurus" site, Whetstone Mountains (Cretaceous to of the United States)

Where: Cochise County, Arizona (31.8° N, 110.4° W: paleocoordinates 32.5° N, 74.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Turney Ranch Formation (Bisbee Group), Late/Upper Albian to Late/Upper Albian (105.3 - 93.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; lithified, fine-grained, coarse, gray sandstone

• "fluvial siliciclastics"
• Moderately to vertically dipping, light gray sandstone and conglomerate ridges and ledges separated by slopes of more earily weathered maroon-colored shale.

Size classes: macrofossils, microfossils

Preservation: trace

Collected by R. Thompson and Arizona-Sonora Desert Museum in 1994-1999

Collection methods: quarrying, chemical, mechanical, peel or thin section,

• discovered by "amateur fossil collectors"

Primary reference: D. W. Thayer and R. P. Ratkevich. 1995. In-progress dinosaur excavation in the mid-Cretaceous Turney Ranch Formation, southeastern Arizona. Proceedings of the Fossils of Arizona Symposium III, Mesa, AZ. Mesa Southwest Museum and Southwest Paleontological Society 63-74 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13105: authorized by Matthew Carrano, entered by Matthew Carrano on 21.01.2002, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

• originally thought to be a hadrosaur
unclassified
  -
Ginkgoopsida
 Ginkgoales - Ginkgoaceae
Ginkgo sp. Linnaeus 1771 ginkgo
Reptilia
 Dinosauria -
Dinosauria indet. Owen 1842 dinosaur
 Saurischia - Brachiosauridae
Sonorasaurus thompsoni n. gen. n. sp.2
Sonorasaurus thompsoni n. gen. n. sp.2 Ratkevich 1998 brachiosaurid
 Theropoda - Carcharodontosauridae
Carcharodontosaurinae indet.1 Brusatte and Sereno 2007 allosauroid
ASDM 330
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle