File:Halysites gracilis (fossil coral colony) (Richmond Group, Upper Ordovician; Winnipeg, Manitoba, Canada) (49135403558).jpg
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| Description |
Halysites gracilis (Hall, 1862) - fossil chain coral from the Ordovician of Manitoba, Canada. Halysitids are a group of extinct, colonial corals. They are readily identifiable - their corallites are linked end-to-end in a distinctive pattern resembling chains (hence the common name “chain corals”). Halysitids are one of the several families of Paleozoic tabulate corals. They were an important reef-building component in the Silurian throughout the world. They occur in shallow-water marine carbonate facies. Classification: Animalia, Cnidaria, Anthozoa, Tabulata, Halysitidae Stratigraphy: unrecorded/undisclosed unit in the Richmond Group (possibly the Selkirk Member of the Red River Formation), Upper Ordovician Locality: unrecorded/undisclosed site at or near Winnipeg (possibly from the Garson area), southeastern Manitoba Province, southern Canada |
| Date | |
| Source | Halysites gracilis (fossil coral colony) (Richmond Group, Upper Ordovician; Winnipeg, Manitoba, Canada) |
| Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/49135403558 (archive). It was reviewed on 5 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:31, 5 December 2019 | | 3,848 × 2,388 (6.39 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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