Mackenzie Mountains, section 24b, bioherm 1 (Cambrian of Canada)

Also known as Reef 3762

Where: Northwest Territories, Canada (63.8° N, 128.8° W: paleocoordinates 1.3° S, 67.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Sekwi Formation, Botomian (516.0 - 512.9 Ma)

• lower unit 9, upper Nevadella zone, samples 77/II and 77/III

• group of beds-level stratigraphic resolution

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

• archaeocyath-microbial bioherms, up to 4 m thick

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: L. G. Voronova, N. A. Drozdova, B. A. Zhegallo, A. Yu Zhuravlev, A. Yu Rozanov, T. A. Sayutina, and G. T. Ushatinskaya. 1987. Fossils from the Lower Cambrian of the MacKenzie Mountains (Canada). Trudy Paleontologicheskogo Instituta 224:1-88 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80957: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.05.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Renalcis
  - Chabakoviacea
Renalcis granosus, Renalcis novus, Renalcis chabakoviformis, Renalcis nodularis
 Hyolithelminthida - Hyolithellidae
Hyolithellus sp.
Hyolithellus sp. Billings 1872
Archaeocyatha
 Archaeocyathida - Syringocnemidae
Williamicyathus colvillensis n. gen.
Williamicyathus colvillensis n. gen. Greggs 1959 archaeocyath sponge
 Archaeocyathida - Metacyathidae
"Metacyathus caribouensis" = Metaldetes
"Metacyathus caribouensis" = Metaldetes archaeocyath sponge
 Archaeocyathida - Archaeosyconidae
"Pustulacyathellus copulatus" = Archaeosycon
"Pustulacyathellus copulatus" = Archaeosycon archaeocyath sponge
 Archaeocyathida - Archaeocyathidae
Arrythmocricus mcdamensis, "Syringsella sp." = Archaeocyathus
Arrythmocricus mcdamensis archaeocyath sponge
"Syringsella sp." = Archaeocyathus Billings 1861 archaeocyath sponge
 Archaeocyathida - Archaeopharetridae
"Dictyocoscinus ketzaensis" = Archaeopharetra, ? Protopharetra junensis n. sp.
"Dictyocoscinus ketzaensis" = Archaeopharetra archaeocyath sponge
? Protopharetra junensis n. sp. Zhuravleva 1987 archaeocyath sponge
 Monocyathida - Favilynthidae
Robertiolynthus handfieldi n. gen. n. sp.
Robertiolynthus handfieldi n. gen. n. sp. Zhuravlev 1987 archaeocyath sponge
 Ajacicyathida - Sanarkocyathidae
? Sanarkocyathus plurimus n. sp.
? Sanarkocyathus plurimus n. sp. archaeocyath sponge
 Ajacicyathida - Tumulocyathidae
"Tumulocyathellus rozanovi" = Plicocyathus
"Tumulocyathellus rozanovi" = Plicocyathus archaeocyath sponge
 Ajacicyathida - Ethmocyathidae
Mackenziecyathus bukryi
Mackenziecyathus bukryi archaeocyath sponge
 Ajacicyathida - Fallocyathidae
Sekwicyathus nahanniensis
Sekwicyathus nahanniensis Handfield 1971 archaeocyath sponge
 Ajacicyathida - Ethmophyllidae
Stephenicyathus rowlandi n. gen. n. sp., Cordilleracyathus keelensis n. sp., Cordilleracyathus blussoni
Stephenicyathus rowlandi n. gen. n. sp. archaeocyath sponge
Cordilleracyathus keelensis n. sp. archaeocyath sponge
Cordilleracyathus blussoni Handfield 1971 archaeocyath sponge
 Capsulocyathida - Fransuasaecyathidae
"Acanthopyrgus yukonensis" = Yukonensis yukonensis
"Acanthopyrgus yukonensis" = Yukonensis yukonensis Handfield 1967 archaeocyath sponge
Epiphyton
  - Ludloviaceae
Epiphyton spissum, Epiphyton racemosum
Kordephyton
  -
Kordephyton crinitum