Spring Creek, Hells Canyon (Triassic of the United States)

Also known as Reef 3323

Where: Oregon (45.1° N, 116.8° W: paleocoordinates 19.3° N, 53.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Martin Bridge limestone Formation, Lacian (221.5 - 215.6 Ma)

• age based on ammonite Trophiceltites cf. columbianus

• group of beds-level stratigraphic resolution

Environment/lithology: perireef or subreef; lithified limestone

• associated bedded limestone includes a variety of shallow-water microfacies, reef structure is absent
• bioclastic beds with silicified fossils about 1.2m thick

Size class: macrofossils

Preservation: recrystallized, replaced with silica

Collection methods: chemical

Primary reference: G. D. Stanley, jr. and M. T. Whalen. 1989. Triassic Corals and Spongiomorphs from Hells Canyon, Wallowa Terrane, Oregon. Journal of Paleontology 63(6):800-819 [W. Kiessling/B. Brenneis/B. Brenneis]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38055: authorized by Wolfgang Kiessling, entered by Benjamin Brenneis on 04.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Hydrozoa
 Spongiomorphida - Spongiomorphidae
Anthozoa
 Scleractinia - Microsolenidae
"Spongiomorpha ramosa" = Eocomoseris ramosa
"Spongiomorpha ramosa" = Eocomoseris ramosa Frech 1890 stony coral
 Scleractinia - Thamnasteriidae
Recticostastraea wallowaensis n. gen. n. sp. Stanley, jr and Whalen 1989 stony coral
 Scleractinia - Astraeomorphidae
Astraeomorpha crassisepta Reuss 1854 stony coral
 Scleractinia - Gablonzeriidae
Gablonzeria profunda Reuss 1854 stony coral
 Scleractinia - Reimaniphylliidae
Kuhnastraea decussata Reuss 1854 stony coral
[entered as Kuhnastraea descussata]
Kuhnastraea incrassata Frech 1890 stony coral
Distichophyllia norica Frech 1890 stony coral
"Pinacophyllum cf. parviseptum" = Retiophyllia parviseptum Squires 1956 stony coral
Retiophyllia dawsoni Clapp and Shimer 1911 stony coral
 Scleractinia - Actinastreidae
"Cyathocoenia paradoxa" = Chondrocoenia paradoxa
"Cyathocoenia paradoxa" = Chondrocoenia paradoxa Melnikova 1968 stony coral
 Scleractinia - Montlivaltiidae
Margarastraea pulchra Montanaro-Gallitelli et al. 1979 stony coral
 Scleractinia - Pamiroseriidae
"Rhaetiastraea cf. vesiculosa" = Crassistella vesiculosa, "Kuhnastraea cowichanensis" = Ampakabastraea cowichanensis, Pamiroseris meriani
"Rhaetiastraea cf. vesiculosa" = Crassistella vesiculosa Melnikova 1986 stony coral
"Kuhnastraea cowichanensis" = Ampakabastraea cowichanensis Clapp and Shimer 1911 stony coral
Pamiroseris meriani Stoppani 1858 stony coral
 Scleractinia - Stylophyllidae
Stylophyllopsis cf. lindstroemi Frech 1890 stony coral
Stylophyllopsis cf. rudis Emmrich 1853 stony coral
Meandrostylis grandiseptus n. sp. Stanley and Whalen 1989 stony coral
"Coccophyllum cf. acanthophorum" = Anthostylis acanthophora Frech 1890 stony coral
 Scleractinia - Guembelastraeidae
 Scleractinia - Cuifastraeidae
Cuifastraea granulata Melnikova 1983 stony coral
 Scleractinia - Pinacophyllidae
Cyathocoenia sp. Duncan 1867 stony coral
Demospongea
 Agelasida - Sebargasiidae
Amblysiphonella cf. steinmanni Haas 1909 demosponge
 Agelasida - Colospongiidae
"Colospongia whaleni n. sp." = Hajarispongia whaleni
"Colospongia whaleni n. sp." = Hajarispongia whaleni Senowbari-Daryan and Stanley, jr 1988 demosponge