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: Anomalophycus, Cambrinaceae, Chenilleophycus, Cretacicrusta, Eurhodophytina, Guangxilamina, Kordephyton, Ludloviaceae, Menselina, Metarhodophytina, Pasinia, Pseudokomia, Rhodellophytina, Rhodophyceae, Sajania, Stacheinaceae, Stenogrammites, Waputikia
Subtaxa: Tetradium approximatum Tetradium huronense
Distribution:
• Chazyan of Canada (1: Quebec collection)
• Ordovician of Australia (27), Canada (18: Ontario, Quebec), China (9), the Russian Federation (3), United States (127: Alaska, Georgia, Indiana, Kentucky, Michigan, New York, Ohio, Tennessee, Virginia)
Total: 185 collections including 223 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.