File:Fisherites reticulatus fossil algae (Kimmswick Formation, Upper Ordovician; riverbed near Ste. Genevieve, Missouri, USA) 2.jpg

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Summary

Description
English: Fisherites reticulatus (Owen, 1844) - eroded fossil calcareous algae in fossiliferous limestone from the Ordovician of Missouri, USA. (Charlotte & Bruce Gibson collection)

This species is also known as Receptactulites oweni.

Receptaculitids are an extinct group of shallow-water marine organisms that have been reported from most of the Paleozoic (Ordovician to Permian). They have a calcareous skeleton with a broadly inflated discoidal shape having a sunflower-like pattern. The taxonomic affiliations of receptaculitides are uncertain. These fossils have been referred to as sponges or algae. Modern researchers seem to agree that receptaculitids are calcareous algae. More specific taxonomic assignments remain controversial.

Classification: Plantae incertae sedis, Receptaculitaphyceae, Receptaculitales, Receptaculitaceae

Stratigraphy: Kimmswick Formation, Katian Stage, Upper Ordovician

Locality: unrecorded/undisclosed site attributed to near the town of Ste. Genevieve ("riverbed near Ste. Genevieve"), far-eastern Missouri, USA


See info. at:

en.wikipedia.org/wiki/Receptaculites
Date
Source https://www.flickr.com/photos/47445767@N05/27309190874/
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@N05/27309190874. It was reviewed on 14 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

14 November 2022

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30 April 2016

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current17:24, 14 November 2022Thumbnail for version as of 17:24, 14 November 20223,384 × 2,903 (3.86 MB)Ser Amantio di NicolaoUploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/27309190874/ with UploadWizard

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