File:Manitobia fossil algae in Silurian argillaceous dolostone (Ontario, Canada).jpg

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English: Manitobia sp. preserved as a carbonized compression in Silurian argillaceous dolostone from Ontario, Canada (FMNH PP46685, Field Museum of Natural History, Chicago, Illinois, USA).

This fossil alga has been previously assigned to Buthotrephis, a nominal genus that is a junior synonym of the branching trace fossil Chondrites. Fossil algae previously identified as "Buthotrephis" have been reassigned to Manitobia, a possible fossil red alga (see Fry, 1983, An algal flora from the Upper Ordovician of the Lake Winnipeg region, Manitoba, Canada. Review of Palaeobotany and Palynology 39: 313-341).

Carbonization refers to fossils being preserved as dark-colored, flattened, carbon-rich films. Many fossil leaves in the rock record have been carbonized. But, any fossil that's been preserved as a dark, flattened film can be called carbonized.
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Source https://www.flickr.com/photos/47445767@N05/15201615171/
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@N05/15201615171. It was reviewed on 15 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

15 November 2022

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current17:24, 14 November 2022Thumbnail for version as of 17:24, 14 November 20221,612 × 2,520 (1.91 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/15201615171/ with UploadWizard

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