Mikkwa River (Devonian of Canada)

Also known as Reef 3852

Where: Alberta, Canada (58.4° N, 114.8° W: paleocoordinates 8.8° S, 38.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mikkwa Formation, Frasnian (382.7 - 372.2 Ma)

• lower member

• group of beds-level stratigraphic resolution

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

• biostromal limestone

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: C. W. Stearn. 1966. Upper Devonian stromatoporoids from southern Northwest Territories and northern Alberta. Bulletin of the Geological Survey of Canada 133:35-68 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 84003: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.09.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Stromatoporoidea
 Clathrodictyida - Atelodictyidae
Atelodictyon stelliferum Stearn 1961 stromatoporoid sponge
 Syringostromatida - Syringostromatidae
? Syringostroma confertum stromatoporoid sponge
 Actinostromatida - Actinostromatidae
Actinostroma clathratum stromatoporoid sponge
 Amphiporida - Amphiporidae
Amphipora ramosa Phillips 1841 stromatoporoid sponge
 Stromatoporida - Ferestromatoporidae
Ferestromatopora parksi, "Ferestromatopora contexta" = Arctostroma contextum, "Stromatopora mikkwaensis n. sp." = Arctostroma contextum
Ferestromatopora parksi Stearn 1966 stromatoporoid sponge
"Ferestromatopora contexta" = Arctostroma contextum Stearn 1963 stromatoporoid sponge
"Stromatopora mikkwaensis n. sp." = Arctostroma contextum Stearn 1963 stromatoporoid sponge
 Stromatoporida - Syringostromellidae
"Pseudoactinodictyon bullulosum n. sp." = Salairella bullulosa
"Pseudoactinodictyon bullulosum n. sp." = Salairella bullulosa Stearn 1966 stromatoporoid sponge
 Stromatoporida - Stromatoporidae
Stromatopora cf. mononensis stromatoporoid sponge
Stromatopora cygnea Stearn 1963 stromatoporoid sponge
 Stromatoporellida - Trupetostromatidae
Trupetostroma hayense Stearn 1966 stromatoporoid sponge