Gap River, Anticosti Isl., Canada (Silurian of Canada)

Also known as Reef 1855

Where: Quebec, Canada (49.2° N, 63.1° W: paleocoordinates 22.8° S, 33.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Chicotte Formation, Telychian (438.5 - 433.4 Ma)

• member-level stratigraphic resolution

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

• Less than 1 m thck, 10-20 m wide reef. Reef core of crystalling greenish-blue calcimudstone. Dominated by stromatoporoids.

Size class: macrofossils

Collection methods: mechanical, peel or thin section,

Primary reference: F. R. Brunton and P. Copper. 1994. Paleoecologic, temporal, and spatial analysis of Early Silurian reefs of the Chicotte Formation, Anticosti Island, Quebec, Canada. Facies 31:57-80 [W. Kiessling/W. Kiessling/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 25251: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 05.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Spiriferida - Cyrtiidae
Cyrtia myrtea
Anthozoa
 Heliolitida - Halysitidae
Catenipora sp.
Catenipora sp. Lamarck 1816 tabulate coral
End reef builders
 Heliolitida - Heliolitidae
Heliolitidae indet.
Heliolitidae indet. Lindström 1876 tabulate coral
 Favositida - Favositidae
Favositidae indet.
Favositidae indet. Dana 1846 tabulate coral
Stromatoporoidea
 Clathrodictyida - Clathrodictyidae
Clathrodictyon sp., Clathrodictyon vesiculosum
Clathrodictyon sp. Nicholson and Murie 1878 stromatoporoid sponge
Clathrodictyon vesiculosum Nicholson and Murie 1878 stromatoporoid sponge
 Clathrodictyida - Gerronostromatidae
Petridiostroma sp.
Petridiostroma sp. Stearn 1992 stromatoporoid sponge
 Stromatoporida - Stromatoporidae
Stromatopora sp.
Stromatopora sp. Goldfuss 1826 stromatoporoid sponge