Archaeolithophyllum is a genus of conceptacle-bearing red alga that falls in the coralline stem group. It somewhat resembles Lithophyllum.[1][2]
| Archaeolithophyllum Temporal range:
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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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As of today, Archaeolithophyllum is the only Palaeozoic coralline to bear clear conceptacles,[3] although the earlier Graticula does bear reproductive structures.[4]
It mineralized using aragonite.[3] Its conceptacles are cone-shaped protrusions that extend outwards from the thallus surface and have a single central opening.[5] It probably encrusted muddy or sandy surfaces.[5]
See also
edit- 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
edit- ^ 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.
- ^ a b 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.
- ^ a b John L. Wray (1964). "Archaeolithophyllum, an Abundant Calcareous Alga in Limestones of the Lansing Group (Pennsylvanian), Southeastern Kansas". Kansas Geological Survey Bulletin. 170 (1).
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