DH1-13, Disappointment Hills, Confusion Range (Triassic of the United States)

Where: Utah (39.4° N, 113.7° W: paleocoordinates 10.0° N, 38.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Anasibirites kingianus ammonoid zone, Thaynes Formation, Smithian (251.3 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified limestone

• Thin limestone bed within dominantly mudstone section

Size class: macrofossils

Preservation: cast

Collection methods: Repository: CNRS Biogéosciences, Université de Bourgogne (UBGD)

Primary reference: A. Brayard, K. G. Bylund, J. F. Jenks, D. A. Stephen, N. Olivier, G. Escarguel, E. Fara and E. Vennin. 2013. Smithian ammonoid faunas from Utah: implications for Early Triassic biostratigraphy, correlation and basinal paleogeography. Swiss Journal of Palaeontology 132:141-219 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 156026: authorized by Matthew Clapham, entered by Matthew Clapham on 07.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ceratitida - Prionitidae
Hemiprionites cf. typus, "Anasibirites kingianus" = Anasibirites kingianus, "Anasibirites cf. angulosus" = Anasibirites kingianus, Wasatchites perrini
Hemiprionites cf. typus Waagen 1895 ceratite
"Anasibirites kingianus" = Anasibirites kingianus Waagen 1895 ceratite
"Anasibirites cf. angulosus" = Anasibirites kingianus Waagen 1895 ceratite
Wasatchites perrini Mathews 1929 ceratite
 Ceratitida - Xenoceltitidae
Xenoceltites "sp. A"
Xenoceltites "sp. A" Spath 1930 ceratite