First Canyon, float from upper division, Shoshone Mountains (Jurassic to of the United States)

Where: Lander County, Nevada (38.8° N, 117.6° W: paleocoordinates 21.5° N, 55.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ferguson Hill Member (Sunrise Formation), Angulata to Angulata (201.3 - 189.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Collection methods: Repository: Northwest Museum of Natural History (NWMNH)

Primary reference: D.G. Taylor. 2000. The Canadensis Zone (Early Jurassic) in the Shoshone Mountains Nevada. GeoResearch Forum 6:211-224 [A. Miller/D. Schramm/D. Schramm]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 157494: authorized by Matthew Clapham, entered by Matthew Clapham on 22.06.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Schlotheimiidae
Angulaticeras ex gr. posttaurinus Waehner 1886 ammonite
 Ammonitida - Arietitidae
Pseudotropites ultratriasicus Canavari 1882 ammonite