Hedstroemia

Hedstroemia; Temporal range: Llandovery–Upper Devonian[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Phylum:	Chlorophyta
Class:	Ulvophyceae
Order:	Bryopsidales
Family:	Codiaceae
Genus:	†Hedstroemia; A. Rothpletz, 1913
Type species
	†Hedstroemia halimedoidea; A. Rothpletz, 1913
Species[2]
	†Hedstroemia bifilosa A. Rothpletz, 1913 ; †Hedstroemia halimedoidea A. Rothpletz, 1913 ;

The extinct genus Hedstroemia was once thought to be a rivulariacean cyanobacterium. It forms oval blobs composed of sinuous tubes that have rounded outlines and occurs in conjunction with Solenopora.[3]

References

"Fossilworks: Hedstroemia". paleodb.org. Retrieved 7 April 2018.
Liu, Lijing; Wu, Yasheng; Yang, Haijun; Riding, Robert (2016). "Ordovician calcified cyanobacteria and associated microfossils from the Tarim Basin, Northwest China: systematics and significance" (PDF). Journal of Systematic Palaeontology. 14 (3): 183–210. doi:10.1080/14772019.2015.1030128.
Riding, R.; Watts, N. (1981). "Silurian algal reef crest in Gotland". Naturwissenschaften. 68 (2): 91. Bibcode:1981NW.....68...91R. doi:10.1007/BF01047229.

Guiry, M.D.; Guiry, G.M. (2008). "Hedstroemia". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Retrieved 2009-06-24.

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[1] "Fossilworks: Hedstroemia". paleodb.org. Retrieved 7 April 2018.

[Liu2016-2] Liu, Lijing; Wu, Yasheng; Yang, Haijun; Riding, Robert (2016). "Ordovician calcified cyanobacteria and associated microfossils from the Tarim Basin, Northwest China: systematics and significance" (PDF). Journal of Systematic Palaeontology. 14 (3): 183–210. doi:10.1080/14772019.2015.1030128.

[Riding&Watts-3] Riding, R.; Watts, N. (1981). "Silurian algal reef crest in Gotland". Naturwissenschaften. 68 (2): 91. Bibcode:1981NW.....68...91R. doi:10.1007/BF01047229.