Family Nostocaceae

Hormogoneae - Nostocales - Nostocaceae

Parent taxon: Nostocales according to B. Amard and J. Bertrand-Sarfati 1997

See also Andrews 1970, Licari 1978 and Sergeev et al. 1995

Sister taxa: Rivulariaceae, Scytonemataceae

Subtaxa: Anabaenidium Archaeoellipsoides Beckspringia Eosphaeronostoc

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Ecology: stationary "photoautotroph"

Distribution:

• Tonian of Australia (1 collection), United States (1: California)

• Stenian of Canada (1: Nunavut)

• Ectasian of Canada (1: Nunavut), the Russian Federation (4)

• Calymmian of China (2), the Russian Federation (16)

• Orosirian of Gabon (1)

Total: 27 collections including 39 occurrences

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