Sporolithaceae

Sporolithaceae; Temporal range:
Scientific classification
(unranked):	Archaeplastida
Division:	Rhodophyta
Class:	Florideophyceae
Order:	Sporolithales
Family:	Sporolithaceae

The Sporolithaceae is the only known family of algae in the Sporolithales order.[1]

Sporolithaceae was originally placed within the Corallinales order,[2] until the creation of the Sporolithales order in 2017.[1]

They are differentiated from the Corallinaceae, by their formation of conceptacles with one or many pores.[3][4]

Species in the Sporolithales (and also the Sporolithaceae), have the characteristics of the Corallinophycidae,[5] but differs from other orders (Corallinales, Rhodogorgonales) in producing tetrasporangia within calcified sporangial compartments and in having tetrasporocytes that undergo cruciate cleavage.[6]

The Graticulaceae (fossil family) are structurally similar to the Sporolithaceae, but are Paleozoic and date back to the Wenlock (Silurian).[7]

Genera

As accepted by AlgaeBase;[6]

Archaeolithothamnion Rothpletz ex Foslie - 8 spp.
Hemiphyllum Marie Lemoine - 1 sp.
Heydrichia R.A.Townsend, Y.M.Chamberlain & Keats - 5 spp.
Roseapetra W.A.Nelson, Twist & K.F.Neill - 1 sp.
Sporolithon Heydrich - 46 spp.

References

Kamiya, M., Lindstrom, S.C., Nakayama, T., Yokoyama, A., Lin, S.-M., Guiry, M.D., Gurgel, F.D.G., Huisman, J.M., Kitayama, T., Suzuki, M., Cho, T.O. & Frey, W. (2017). Rhodophyta. In: Syllabus of Plant Families, 13th ed. Part 2/2 Photoautotrophic eukaryotic Algae. (Frey, W. Eds), pp. [i]-xii, [1]-171. Stuttgart: Borntraeger Science Publishers.
"Sporolithaceae, State Herbarium of South Australia". www.flora.sa.gov.au. Retrieved 14 December 2022.
Taylor, Thomas N; Taylor, Edith L; Krings, Michael (2009). Paleobotany: the biology and evolution of fossil plants. ISBN 978-0-12-373972-8.
Aguirre, J.; Perfectti, F.; Braga, J. C. (2010). "Integrating phylogeny, molecular clocks, and the fossil record in the evolution of coralline algae (Corallinales and Sporolithales, Rhodophyta)". Paleobiology. 36 (4): 519. doi:10.1666/09041.1. S2CID 85227395.
de Queiroz, Kevin; Cantino, Philip D.; Gauthier, Jacques A. (2020). "Corallinophycidae L. Le Gall and G. W. Saunders 2007 [G. W. Saunders], converted clade name". Phylonyms; A Companion to the PhyloCode (1st ed.). CRC Press.
"Taxonomy Browser :: AlgaeBase". www.algaebase.org. Retrieved 12 December 2022.
Brooke, C.; Riding, R. (1998). "Ordovician and Silurian coralline red algae". Lethaia. 31 (3): 185. doi:10.1111/j.1502-3931.1998.tb00506.x.

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[Kamiya-1] Kamiya, M., Lindstrom, S.C., Nakayama, T., Yokoyama, A., Lin, S.-M., Guiry, M.D., Gurgel, F.D.G., Huisman, J.M., Kitayama, T., Suzuki, M., Cho, T.O. & Frey, W. (2017). Rhodophyta. In: Syllabus of Plant Families, 13th ed. Part 2/2 Photoautotrophic eukaryotic Algae. (Frey, W. Eds), pp. [i]-xii, [1]-171. Stuttgart: Borntraeger Science Publishers.

[2] "Sporolithaceae, State Herbarium of South Australia". www.flora.sa.gov.au. Retrieved 14 December 2022.

[3] Taylor, Thomas N; Taylor, Edith L; Krings, Michael (2009). Paleobotany: the biology and evolution of fossil plants. ISBN 978-0-12-373972-8.

[4] Aguirre, J.; Perfectti, F.; Braga, J. C. (2010). "Integrating phylogeny, molecular clocks, and the fossil record in the evolution of coralline algae (Corallinales and Sporolithales, Rhodophyta)". Paleobiology. 36 (4): 519. doi:10.1666/09041.1. S2CID 85227395.

[5] Queiroz, Kevin; Cantino, Philip D.; Gauthier, Jacques A. (2020). "Corallinophycidae L. Le Gall and G. W. Saunders 2007 [G. W. Saunders], converted clade name". Phylonyms; A Companion to the PhyloCode (1st ed.). CRC Press.

[Algaebase-6] "Taxonomy Browser :: AlgaeBase". www.algaebase.org. Retrieved 12 December 2022.

[Brooke1998-7] Brooke, C.; Riding, R. (1998). "Ordovician and Silurian coralline red algae". Lethaia. 31 (3): 185. doi:10.1111/j.1502-3931.1998.tb00506.x.