Solenopora

The extinct Solenoporaceae have traditionally been interpreted as a group of red algae ancestral to the Corallinales.[4]

Solenopora
Temporal range: Cambrian–Tertiary[1]
Fossils of Solenopora species
Scientific classification
(unranked): Archaeplastida
Division: Rhodophyta
Class: Florideophyceae
Stem group: Corallinales
Family: †Solenoporaceae
Pia, 1927 [2]
Genus: †Solenopora
Dybowski, 1877
Species[3]
  • †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 genus from which they take their name, Solenopora, originates in the Ordovician.[5] Unlike the Corallinaceae, this family has large vegetative cells and an undifferentiated thallus.[5] Additionally there are external, non-calcified sporangia.[6]

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.[7] However, some algal taxa are still classified within the genus.[8]

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.[8]

The solenoporaceae mineralized with calcite.[9]

Other genera within the Solenoporaceae

Although the following other genera have been included in this family, their status is uncertain due to the loose definition of the family.[3][7]

  • Dendronella Moussavian and Senowbari-Daryan 1988
  • Elianella
  • Marinella Pfender 1939
  • Metasolenopora Pia 1930
  • Parachaetetes Deninger 1906
  • Pycnoporidium Yabe and Toyama 1928
  • Solenoporella Rothpletz
  • Tauristorea Senowbari-Daryan and Link 2005
gollark: Done!
gollark: Using it out of spite anyway...
gollark: But `result` good?!
gollark: If it contains horrible mistakes it's going to be hard to test it, because it works on a week timespan.
gollark: Instead of constantly recalculating uptime % from the raw data, which is unusably slow, it now maintains a rolling countery thing.

See also

References
  1. Wright, V. P. (1 May 1985). "Seasonal Banding in the Alga Solenopora jurassica from the Middle Jurassic of Gloucestershire, England". Journal of Paleontology. 59 (3): 485–792. Bibcode:1974JPal...48..524M. ISSN 0022-3360. JSTOR 1304992.
  2. Max Hirmer; Julius Pia et al , 1927 Handbuch der Paläobotanik München : Verlag von R. Oldenbourg
  3. Paleobiology Database
  4. Johnson, J. H. (May 1956). "Ancestry of the Coralline Algae". Journal of Paleontology. 30 (3): 563–567. ISSN 0022-3360. JSTOR 1300291.
  5. Blackwell, W. H.; Marak, J. H.; Powell, M. J. (1982). "THE IDENTITY AND REPRODUCTIVE STRUCTURES OF A MISPLACED SOLENOPORA (RHODOPHYCOPHYTA) FROM THE ORDOVICIAN OF SOUTHWESTERN OHIO AND EASTERN INDIANA". Journal of Phycology. 18 (4): 477. doi:10.1111/j.0022-3646.1982.00477.x.
  6. Lee, R. E. (1999). Phycology. Cambridge University Press. p. 158. ISBN 978-0-521-63883-8. Solenoporaceae.
  7. Riding, R. (2004). "Solenopora is a Chaetetid Sponge, Not an Alga". Palaeontology. 47: 117–122. doi:10.1111/j.0031-0239.2004.00351.x.
  8. Wolkenstein, K.; Gross, J. H.; Falk, H. (2010). "Boron-containing organic pigments from a Jurassic red alga". Proceedings of the National Academy of Sciences. 107 (45): 19374–19378. Bibcode:2010PNAS..10719374W. doi:10.1073/pnas.1007973107. PMC 2984207. PMID 20974956.
  9. Cozar, P.; Vachard, D. (2006). "A new Mississippian red alga from south-western Spain". Geobios. 39 (6): 791. doi:10.1016/j.geobios.2005.09.002.


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