Tetradium Dana 1846 (red algae)


Was thought to be a sponge; later recognized to be an algae.

Parent taxon: Rhodophyta according to Steele-Petrovich 2009

See also Murray 1985, Pojeta et al. 2003 and Sepkoski 2002

Sister taxa: Archaeolithoporella, Chenilleophycus, Guangxilamina, Kordephyton, Rhodophyceae, Stacheinaceae

Subtaxa: Tetradium huronense

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• Ordovician of Australia (27 collections), Canada (18: Ontario, Quebec), China (8), the Russian Federation (1), United States (122: Alaska, Georgia, Indiana, Kentucky, Michigan, New York, Ohio, Tennessee, Virginia)

• Chazy of Canada (1: Quebec)

Total: 177 collections including 214 occurrences

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Specimen images are retrieved through the ePANDDA API.

Click image to enlarge. Click to access iDigBio record.