Hot Springs JGX-HS6, Bear Lake (Triassic of the United States)

Where: Idaho (42.1° N, 111.2° W: paleocoordinates 11.5° N, 35.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Columbites parisianus ammonoid zone, Thaynes Formation, Spathian (251.3 - 247.2 Ma)

• Horizon H4

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified, nodular shale

Size class: macrofossils

Primary reference: J. Guex, A. Hungerbühler, J. F. Jenks, L. O'Dogherty, V. Atudorei, D. G. Taylor, H. Bucher and A. Bartolini. 2010. Spathian (Lower Triassic) ammonoids from western USA (Idaho, California, Utah and Nevada). Mémoires de Géologie (Lausanne) 49:1-82 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 109407: authorized by Matthew Clapham, entered by Matthew Clapham on 16.05.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Phylloceratida - Nordophiceratidae
Nordophiceratoides adriani n. sp. Guex et al. 2005 ammonite
Nordophiceratoides bartolinae n. sp. Guex et al. 2010 ammonite
Nordophiceratoides gracilis Guex et al. 2005 ammonite
 Ceratitida -
Jeanbesseiceras jacksoni Hyatt and Smith 1905 ceratite
 Ceratitida - Hedenstroemiidae
Cordillerites angulatus Hyatt and Smith 1905 ceratite
 Ceratitida - Xenoceltitidae
Xenoceltites spencei Hyatt and Smith 1905 ceratite
 Ceratitida - Albanitidae
Albanites sheldoni Kummel 1969 ceratite
 Ceratitida - Columbitidae
Yvesgalleticeras raphaeli n. sp. Guex et al. 2010 ceratite
Columbites crassicostatus Guex et al. 2005 ceratite
Columbites isabellae Guex et al. 2005 ceratite
"Columbites aff. minimus" = Columbites parisianus Hyatt and Smith 1905 ceratite
Idahocolumbites cheneyi Kummel 1969 ceratite
 Ceratitida - Tirolitidae
Tirolites smithi Kummel 1969 ceratite