Merrimack Formation

Geologic formation in Quebec, Canada From Wikipedia, the free encyclopedia

The Merrimack Formation is a geologic formation in Quebec. It preserves fossils dating back to the Silurian period.

Quick facts Type, Underlies ...
Merrimack Formation
Stratigraphic range: Silurian
TypeGeological formation
UnderliesGun River Formation[1]
Location
RegionQuebec
CountryCanada
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Fossil content

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
More information Brachiopods, Genus ...
Brachiopods
GenusSpeciesPresence MaterialNotesImages
Cerasina C. pycnata Near Merrimack Point, northeastern coast of Anticosti Island.[2] More than 200 specimens.[2] Genus renamed to Cerasinella.[3]
Cerasinella C. pycnata Near Merrimack Point, northeastern coast of Anticosti Island.[2] More than 200 specimens.[2] An atrypoid originally named Cerasina.[3]
Fenestrirostra F. glacialis Middle and upper beds of the formation.[4] A rhynchonellid also found in the lowermost Gun River Formation.
F. primaeva Lower part of the middle Merrimack Formation.[4] A rhynchonellid.
Stricklandia S. sp. "A22=C683 (2 broken shells); A1242 (15, broken); A1329 (1 broken dorsal valve)".[5] Also found in the Gun River Formation.
Virgiana V. mayvillensis "A505 (1 shell); A 739 (5, all broken); A 741 (33, most damaged); A842 (38, most damaged); A 1330 (12 shells)".[5]
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References

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