Lime Peak reefs (Triassic of Canada)

Also known as Reef 10

Where: Yukon, Canada (61.1° N, 134.9° W: paleocoordinates 27.7° N, 72.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Hancock Member (Aksala Formation), Norian (228.0 - 208.5 Ma)

• based on occurance of conodonts, Triassina oberhauseri and Microtubus communis

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified reef rocks

• includes reefs and bedded inter-reef limestones; reefs range from mounds over 100m thick, to tabular reefs about 30m thick, to small, irregular reefs.

Size class: macrofossils

Preservation: recrystallized

Collection methods: peel or thin section

• Idientifications of Yarnell et al. are preliminary

Primary reference: B. Senowbari-Daryan and R. P. Reid. 1987. Upper Triassic sponges (Sphinctozoa) from southern Yukon, Stikinia terrane. Canadian Journal of Earth Sciences 24:882-902 [W. Kiessling/B. Brenneis/B. Brenneis]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38033: authorized by Wolfgang Kiessling, entered by Benjamin Brenneis on 01.04.2004, edited by Wolfgang Kiessling and Sarah Kolbe

Creative Commons license: CC BY (attribution)

Taxonomic list

 Involutinina - Involutinidae
Triasina oberhauseri
listed as Triassina oberhauseri
Polychaeta
  -
Bivalvia
 Megalodontida - Wallowaconchidae
Wallowaconcha (cf. Wallowaconcha) raylenea3 Yancey and Stanley 1999 clam
Conodonta
  -
Conodonta indet. Eichenberg 1930 conodont
Hydrozoa
 Spongiomorphida - Spongiomorphidae
Anthozoa
 Scleractinia - Thamnasteriidae
Thamnasteria sp.1 LeSauvage 1823 stony coral
 Scleractinia - Procyclolitidae
Procyclolites sp.4 Frech 1890 stony coral
Procyclolites triadicus3 Frech 1890 stony coral
 Scleractinia - Astraeomorphidae
Astraeomorpha sp.4 Reuss 1854 stony coral
Astraeomorpha sonorensis3 Stanley 1994 stony coral
 Scleractinia - Gablonzeriidae
Gablonzeria sp.4 Cuif 1976 stony coral
Gablonzeria profunda3 Reuss 1854 stony coral
 Scleractinia - Reimaniphylliidae
Distichoflabellum sp.3 Roniewicz 1989 stony coral
Retiophyllia sp.1 Cuif 1966 stony coral
"Thecosmilia" spp.
Retiophyllia norica3 Frech 1890 stony coral
Retiophyllia oppeli3 Reuss 1864 stony coral
Retiophyllia (cf. Retiophylla) robusta3 Roniewicz 1989 stony coral
 Scleractinia - Margarophylliidae
Distichomeandra sp.4 Cuif 1976 stony coral
Distichomeandra austriaca3 Frech 1890 stony coral
 Scleractinia - Actinastreidae
Chondrocoenia sp.4 Roniewicz 1989 stony coral
Chondrocoenia waltheri3 Frech 1890 stony coral
 Scleractinia - Montlivaltiidae
Montlivaltia sp.1 Lamouroux 1821 stony coral
"Montlivaltia" sp.
 Scleractinia - Pamiroseriidae
Crassistella sp.4 Roniewicz 1989 stony coral
Crassistella juvavica3 Frech 1890 stony coral
Demospongea
 Hadromerida - Celyphiidae
"Follicatena irregularis" = Uvanella norica, Uvanella irregularis
"Follicatena irregularis" = Uvanella norica Senowbari-Daryan 1990 demosponge
Uvanella irregularis Ott 1967 demosponge
 Vaceletida - Verticillitidae
Cinnabaria expansa2 Seilacher 1962 demosponge
Nevadathalamia ramosa n. gen.2 Senowbari-Daryan and Reid 1987 demosponge
Nevadathalamia cylindrica n. gen.2 Seilacher 1962 demosponge
 Agelasida - Solenolmiidae
Paradeningeria alpina, "Dictyocoelia cf. manon" = Solenolmia manon
Paradeningeria alpina Senowbari-Daryan and Schaefer 1979 demosponge
"Dictyocoelia cf. manon" = Solenolmia manon Münster 1841 demosponge
 Agelasida - Sebargasiidae
Polycystocoelia norica n. sp. demosponge
Polycystocoelia sp. Zhang 1983 demosponge
Polycystocoelia sp.1
 Agelasida - Cryptocoeliidae
Cryptocoelia zitteli Steinmann 1882 demosponge
 Agelasida - Aphrosalpingidae
Yukonella rigbyi n. gen. n. sp. demosponge
? Yukonella sp. demosponge
Yukonella?/ Amblysiphonella? sp.
 Agelasida - Salzburgiidae
? Salzburgia sp. Senowbari-Daryan and Schaefer 1979 demosponge
 Agelasida - Girtyocoeliidae
Henricellum cf. insigne Wilckens 1937 demosponge
 Agelasida - Colospongiidae
Colospongia dubia Münster 1841 demosponge
Colospongia cf. mennulensis Senowbari-Daryan and Schaefer 1986 demosponge