| Archaeolithophyllum Temporal range: Pennsylvanian PreꞒ Ꞓ O S D C P T J K Pg N | |
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Scientific classification 
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| Clade: | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Stem group: | Corallinales |
| Family: | †Archaeolithophyllaceae |
| Genus: | †Archaeolithophyllum Johnson, 1956 |
| Species | |
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Archaeolithophyllum is a genus of conceptacle-bearing red alga that falls in the coralline stem group. It somewhat resembles Lithophyllum.
As of today, Archaeolithophyllum is the only Palaeozoic coralline to bear clear conceptacles, although the earlier Graticula does bear reproductive structures.
It mineralized using aragonite. Its conceptacles are cone-shaped protrusions that extend outwards from the thallus surface and have a single central opening. It probably encrusted muddy or sandy surfaces.
See also
- Coralline algae#Evolution
- Other stem-group corallines:
- Arenigiphyllum (Ordovician)
- Petrophyton (Ordovician : Caradoc)
- Graticula (Silurian : Wenlock)
- Halysis (Ordovician)
- Archaeolithophyllum (Pennsylvanian)
- ?Maimonachaetetes (Mississippian)
- ?Palaeoaplysina (Pennsylvanian – Permian; possibly an animal)
- ? Solenoporaceae (Ordovician)
References
- Harlan Johnson, J. (1956). "Archaeolithophyllum, a new genus of Paleozoic Coralline algae". Journal of Paleontology. 30 (1): 53–55. JSTOR 1300377.
- Xiao, S.; Knoll, A. H.; Yuan, X.; Pueschel, C. M. (2004). "Phosphatized multicellular algae in the Neoproterozoic Doushantuo Formation, China, and the early evolution of florideophyte red algae". American Journal of Botany. 91 (2): 214–227. doi:10.3732/ajb.91.2.214. PMID 21653378.
- ^ 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.
- Brooke, C.; Riding, R. (1998). "Ordovician and Silurian coralline red algae". Lethaia. 31 (3): 185. doi:10.1111/j.1502-3931.1998.tb00506.x.
- ^ John L. Wray (1964). "Archaeolithophyllum, an Abundant Calcareous Alga in Limestones of the Lansing Group (Pennsylvanian), Southeastern Kansas". Kansas Geological Survey Bulletin. 170 (1).
| Taxon identifiers | |
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| Archaeolithophyllum | |
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