Mawsonites

Fossil genus of uncertain placement

Mawsonites

Temporal range: Ediacaran

Fossil of Mawsonites spriggi at Natural History Museum, London
Scientific classification
Kingdom:  | Animalia
Phylum:  | incertae sedis
Genus:  | †Mawsonites
Glaessner & Wade, 1966
Type species
Mawsonites spriggi

Glaessner & Wade 1966

Mawsonites is a fossil genus dating to the Ediacaran Period from 635 – 539 million years ago during the Precambrian era. The fossils consist of a rounded diamond shape, made up from lobes radiating out from a central circle roughly 12 cm in diameter. There are about 19 radiations from the central circle.

The type species is Mawsonites spriggi, named after Douglas Mawson, and Reg Sprigg. It was named by Martin Glaessner and Mary Wade in 1966.[1]

Its biological affinities were called into question amidst suggestions that it might represent a mud volcano or other sedimentary structure, but further research showed that these structures could not satisfactorily account for its complexity.[2]

The fossil has been theorized to represent algae holdfasts, jellyfish,[3] a filter feeder, a burrow, a microbial colony or invertebrate tracks.[4] Several of these possibilities would indicate that Mawsonites represents a trace fossil, not an organism.

## See also

[edit]

* List of Ediacaran genera

## References

[edit]

1. ^ "The Late Precambrian Fossils from Ediacara, South Australia". Palaeontology. 9 (4): 599–628\. 1966.
2. ^ van Loon, A.J. (2008). "The nature of Mawsonites (Ediacara fauna)". Gondwana Research. 14 (1–2): 175–182\. Bibcode:2008GondR..14..175V. doi:10.1016/j.gr.2007.08.009.1–2&rft.pages=175-182&rft.date=2008&rft_id=info:doi/10.1016/j.gr.2007.08.009&rft_id=info:bibcode/2008GondR..14..175V&rft.aulast=van+Loon&rft.aufirst=A.J.&rfr_id=info:sid/en.wikipedia.org:Mawsonites" class="Z3988">
3. ^ McMenamin, Mark A. S. (1990). The Emergence of Animals. New York: Columbia Press. p. 19-24. ISBN 0-231-06647-3.
4. ^ Walker, Cyril; Ward, David (2002). Fossils (Second American ed.). Dorling Kindersley. p. 43\. ISBN 0-7894-8984-8.

* Digging Up Deep Time, Paul Willis and Abbie Thomas
* Ediacaran Taxa

Taxon identifiers

Mawsonites|

* Wikidata: Q20672147
* EoL: 6905710
* GBIF: 4877910
* IRMNG: 1301287
* Open Tree of Life: 3680455
* Paleobiology Database: 112078

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