Little Current, Manitoulin Island (Silurian of Canada)

Also known as Reef 1421

Where: Ontario, Canada (46.0° N, 81.9° W: paleocoordinates 20.3° S, 50.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Manitoulin Formation, Rhuddanian (443.4 - 440.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, dolomitic wackestone and lithified, dolomitic lime mudstone

• 2 small (1-2 m high) mud-mounds, composed of bryozoans and crinozoans

Size class: macrofossils

Primary reference: P. Copper. 1982. Early Silurian atrypoids from Manitoulin Island and Bruce Peninsula, Ontario. Journal of Paleontology 56(3):680-702 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79160: authorized by Wolfgang Kiessling, entered by Uta Merkel on 27.02.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

 Rhombifera - Callocystitidae
Brockocystis sp. Foerste 1914
Strophomenata
 Orthotetida - Chilidiopsidae
Fardenia sp. Lamont 1935
Rhynchonellata
 Atrypida - Atrypinidae
Sypharatrypa honora n. gen. n. sp.
Sypharatrypa honora n. gen. n. sp.
 Rhynchonellida - Rhynchotrematidae
Stegerhynchus sp. Foerste 1909
 Orthida - Rhipidomellidae
Mendacella sp. Cooper 1930
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Anthozoa
 Favositida - Favositidae
Paleofavosites sp. Twenhofel 1914 tabulate coral
 Stauriida - Stauriidae