New Pass, South Canyon, Upper Member, Augusta Mountain Fm (Triassic of the United States)

Also known as Reef 4219

Where: Nevada (39.6° N, 117.5° W: paleocoordinates 14.2° N, 50.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Upper Member (Augusta Mountain Formation), Oretian (227.5 - 221.0 Ma)

• T. desatoyense zone (now Daxatina beds)

• bed-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, argillaceous limestone

• sponges (42%) and micritic matrix (58%) dominate this bindstone, however cortoids and encrusting serpulids are present and most likely help facilitate the construction of a more rigid biostrome

Size class: macrofossils

Collection methods: Repository: Museo di Paleontologia (MPUM), Dipartimento di Scienze della Terra “Ardito Desio”, Università degli Studi di Milano

Primary reference: N. Bonuso, S. Loyd, and N. J. Lorentz. 2018. Pioneer reef communities within a Middle Triassic (Anisian) to Upper Triassic (Carnian) mixed carbonate-siliciclastic ramp system from the Star Peak Group, South Canyon, central Nevada. Palaeogeography, Palaeoclimatology, Palaeoecology 503:1-12 [W. Kiessling/M. Krause]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 195804: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 27.08.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Demospongiae
 Verticillitida - Colospongiidae
? Colospongia sp.
? Colospongia sp. Laube 1865 demosponge
 Agelasida - Solenolmiidae
Solenolmia sp.
Solenolmia sp. Pomel 1872 demosponge
Sedentaria
 Sabellida - Serpulidae
Serpulidae indet.
Serpulidae indet. Rafinesque 1835
Echinoidea
  -
Echinoidea indet.
Echinoidea indet. Leske 1778 sea urchin