Jump to content

Ramathallus

From Wikipedia, the free encyclopedia

Ramathallus
Temporal range: Late Statherian,
~1600 Ma
thin section of holotype
Scientific classification Edit this classification
Clade: Archaeplastida
Division: Rhodophyta
Class: Florideophyceae
Genus: Ramathallus
Bengston et al., 2017
Species:
R. lobatus
Binomial name
Ramathallus lobatus
Bengston et al., 2017

Ramathallus is a genus of sessile lobate alga that represents a probable stem-Rhodophyte from the Upper Statherian, 1600 Million years ago.[1] The holotype of Ramathallus lobatus shows a cell structure with finger-like protrusions and a coating of non-cellular apatic. The cells have a dark granular material inside of them.[1] The organism grew by apical growth and possessed pseudoparenchymatous thallus which in turn infer a possible affinity with the Florideophyceae. Many lobate protrusions radiated from the organisms centre composed out of pseudoparenchymatous tissue interpreted as "Cell fountains" made up of variably-sized cells. Ramathallus shares a close morphological similarity with the Ediacaran genera made up of pseudoparenchymatous, lobate fossils (Thallophyca, Thallophycoides, Paramecia and Gremiphyca) from the Doushantuo phosphorites of China .[1]

See also

[edit]

References

[edit]
  1. ^ a b c Bengtson, Stefan; Sallstedt, Therese; Belivanova, Veneta; Whitehouse, Martin (2017). "Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae". PLOS Biology. 15 (3): e2000735. doi:10.1371/journal.pbio.2000735. PMC 5349422. PMID 28291791. S2CID 11783568.