†Prismostylus Okulitch 1935 (red algae)
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Parent taxon: Florideophyceae according to H. M. Steele-Petrovich 2011
Sister taxa: Ahnfeltiophycidae, Corallinophycidae, Corallinophycidea, Cryptonemiales, Dawsoniolithon, Hildenbrandiophycidae, Nemaliophycidae, Rhodymeniophycidae
Subtaxa: Prismostylus fibratum
Distribution:
• Ordovician of Canada (4: Ontario, Quebec collections), the Russian Federation (1), United States (44: Georgia, Missouri, New York, Tennessee, Virginia)
Total: 49 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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