Westgate Ridge Section, Horizon 6 (Jurassic of the United States)

Where: Churchill County, Nevada (39.3° N, 118.1° W: paleocoordinates 25.8° N, 54.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Kunae ammonoid zone, Joker Peak Member (Sunrise Formation), Late/Upper Pliensbachian (189.6 - 183.0 Ma)

Environment/lithology: deep-water; lithified, calcareous sandstone

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: surface (in situ)

• University of Montana Paleontology Center (UMPC) collection

Primary reference: A. H. Caruthers, P. L. Smith, D. Gröcke, B. C. Gill, T. R. Them and J. P. Trabucho-Alexandre. 2018. Pliensbachian–Toarcian (Early Jurassic) Ammonoids from the Luning Embayment, West-Central Nevada, U.S.A. Bulletins of American Paleontology 393:1-84 [J. Pálfy/Z. Kostka]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 208005: authorized by József Pálfy, entered by Dorina Juhász on 11.03.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Dactylioceratidae
"Reynesoceras colubriforme" = Prodactylioceras colubriforme, Reynesocoeloceras corvalani n. sp.
"Reynesoceras colubriforme" = Prodactylioceras colubriforme Bettoni 1900 ammonite