Bicellum brasieri
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| Bicellum brasieri Temporal range:
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|---|---|
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| Multiple specimens of B. brasieri, such as the holotype (A) | |
Scientific classification 
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| Domain: | Eukaryota |
| (unranked): | Amorphea |
| (unranked): | Obazoa |
| (unranked): | Opisthokonta |
| (unranked): | Holozoa |
| Genus: | †Bicellum |
| Species: | †B. brasieri
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| Binomial name | |
| †Bicellum brasieri Strother et al. 2021
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Bicellum brasieri is a fossil holozoan.[1] It is about 1 billion years old and could be the oldest example of complex multicellularity in the evolutionary lineage leading to the animals.[2] It was discovered in 2021,[2] and is named posthumously after the late palaeontologist Martin Brasier, who was a co-author of the paper that first described it.[3]
Fossil site
Bicellum was found in sediments from the Diabaig Formation in Loch Torridon, Scotland. The Diabaig Formation, considered to represent an ancient lake deposit,[4] was already known to preserve the first non-marine eukaryotes.[5]
References
- ^ Strother, Paul K.; Brasier, Martin D.; Wacey, David; Timpe, Leslie; Saunders, Martin; Wellman, Charles H. (April 2021). "A possible billion-year-old holozoan with differentiated multicellularity". Current Biology. 31 (12): 2658–2665.e2. doi:10.1016/j.cub.2021.03.051. PMID 33852871.
- ^ a b "Billion-year-old fossil found preserved in Torridon rocks". BBC News. 29 April 2021. Retrieved 2 May 2021.
- ^ "Billion-Year-Old Scottish Fossil Could Be The Oldest Proto-Animal Ever Found". IFLScience. 30 April 2021.
- ^ Stewart, A. D. (2002). The Later Proterozoic Torridonian Rocks of Scotland: their Sedimentology, Geochemistry and Origin. London: the Geological Society. pp. 1–136. ISBN 1-86239-103-3.
- ^ Strother, Paul K.; Battison, Leila; Brasier, Martin D.; Wellman, Charles H. (May 2011). "Earth's earliest non-marine eukaryotes". Nature. 473 (7348): 505–509. Bibcode:2011Natur.473..505S. doi:10.1038/nature09943. ISSN 1476-4687. PMID 21490597. S2CID 4418860.
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