Yarnemia
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| Reconstruction as a tunicate-like animal | |
| Scientific classification Edit this classification | |
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| Binomial name | |
| Template:Taxon infoTemplate:Taxon italics Nesov in Chistyakov et al., 1984
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Yarnemia ascidiformis is a fossil tentatively classified as a tunicate. If this classification is correct, it would significantly extend the range of the tunicate fossil record from the Cambrian back into the Ediacaran.[2]
Discovery and name
The holotype fossil of Yarnemia was found from the Ustʹ Pinega Formation between 1976 and 1978, and described in 1984.[3]
The generic name Yarnemia comes from the village of Yarnema near which the first specimens were found. The specific epithet, ascidiformis, refers to the likeness to ascidians.[3]
Description
Yarnemia ascidiformis is a possible tunicate, growing up to Template:Cvt in length, with the standard oblong body and two openings, or siphons, on the top of the body to allow water to flow through them.
See also
Other Ediacaran biota tentatively identified as tunicates include
References
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- ^ Page Module:Citation/CS1/styles.css has no content.Martyshyn, Andrej; Uchman, Alfred (December 2021). "New Ediacaran fossils from the Ukraine, some with a putative tunicate relationship". PalZ. 95 (4): 623–639. Bibcode:2021PalZ...95..623M. doi:10.1007/s12542-021-00596-1. eISSN 1867-6812. ISSN 0031-0220. S2CID 244957825.
- ^ University of California Museum of Paleontology Berkeley
- ^ a b Page Module:Citation/CS1/styles.css has no content.Chistyakov, V.G.; Kalmykova, N.A.; Nesov, L.A. & Suslov, G.A. (1984). "О наличии вендских отложений в среднем течении р. Онеги и возможном существовании оболочечников (Tunicata: Chordata) в докембрии" [On the Presence of Vendian Deposits in the Middle Course of the Onega River and Presumable Existence of Tunica (Tunicata: Chordata) in Precambrian] (PDF). Vest. Leningrad. Gos. Univ. (in Russian). 6: 11–19. Archived from the original (PDF) on February 7, 2007.
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