Solenopora

Solenopora; Temporal range:
	Fossils of Solenopora species
Scientific classification
(unranked):	Archaeplastida
Division:	Rhodophyta
Class:	Florideophyceae
Stem group:	Corallinales
Family:	†Solenoporaceae; Pia, 1927
Genus:	†Solenopora; Dybowski, 1877
Species
	†Solenopora alcicornis Ott, 1966; †Solenopora concentrica Senowbari-Daryan et al., 2006; †Solenopora guangxiensis Wu, 1991; †Solenopora jurassica Brown, 1894; †Solenopora paraconcentrica Senowbari-Daryan et al., 2006; †Solenopora rectangulata Senowbari-Daryan et al., 2008; †Solenopora spongiodes Dybowski, 1877; †Solenopora triasina Vinassa de Regny, 1915; †Solenopora vachardi Senowbari-Daryan et al., 2006;

The extinct Solenoporaceae have traditionally been interpreted as a group of red algae ancestral to the Corallinales.

The genus from which they take their name, Solenopora, originates in the Ordovician. Unlike the Corallinaceae, this family has large vegetative cells and an undifferentiated thallus. Additionally there are external, non-calcified sporangia.

The differences in structure suggest that the holotype is not an alga at all, but rather is a chaetetid sponge. Post-Palaeozoic specimens therefore require re-classification. However, some algal taxa are still classified within the genus.

Some specimens of algal Solenopora retain an original pink colouration, which is banded with growth stages of the fossil; this is produced by boron-containing hydrocarbons.

The solenoporaceae mineralized with calcite.

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Solenopora Temporal range:

Fossils of Solenopora species
Scientific classification
(unranked):	Archaeplastida
Division:	Rhodophyta
Class:	Florideophyceae
Stem group:	Corallinales
Family:	†Solenoporaceae Pia, 1927
Genus:	†Solenopora Dybowski, 1877
Species
†Solenopora alcicornis Ott, 1966 †Solenopora concentrica Senowbari-Daryan et al., 2006 †Solenopora guangxiensis Wu, 1991 †Solenopora jurassica Brown, 1894 †Solenopora paraconcentrica Senowbari-Daryan et al., 2006 †Solenopora rectangulata Senowbari-Daryan et al., 2008 †Solenopora spongiodes Dybowski, 1877 †Solenopora triasina Vinassa de Regny, 1915 †Solenopora vachardi Senowbari-Daryan et al., 2006