Bed SC20(1), South Canyon, New Pass Range (Triassic of the United States)

Where: Nevada (39.6° N, 117.5° W: paleocoordinates 8.6° N, 43.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Augusta Formation (Star Peak Group), Longobardian (242.0 - 235.0 Ma)

• Sutherlandi zone or lower

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, medium-grained, gray limestone

• Biostromes of in situ corals, hydrozoans, mollusks, and calcareous red algae occur at the base of a 59 m thick carbonate and argillaceous limestone interval. Biostromes ranging in thickness from one to three meters.

Size class: macrofossils

Preservation: recrystallized, replaced with calcite

Collected by G.D. Stanley

Collection methods: peel or thin section,

• Repository: University of Montana Invertebrate Paleontology, University of Montana Paleontology Center

Primary reference: E. Roniewicz and G. D. Stanley. 1998. Middle Triassic cnidarians from the New Pass Range, central Nevada. Journal of Paleontology 72(2):246-256 [W. Kiessling/B. Brenneis/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 150772: authorized by Matthew Clapham, entered by Matthew Clapham on 14.09.2013, edited by Benjamin Brenneis

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Hydrozoa
 Lemniscaterina - Cassianastraeidae
Cassianastraea reussi
Anthozoa
 Scleractinia - Thamnasteriidae
Mesomorpha newpassensis n. sp.
Mesomorpha newpassensis n. sp. Roniewicz and Stanley 1998 stony coral
 Scleractinia - Cuifastraeidae
? Cuifastraea sp.
? Cuifastraea sp. Melnikova 1983 stony coral
 Scleractinia - Pamiroseriidae
Ceriostella variabilis
Ceriostella variabilis Roniewicz and Stanley 1998 stony coral