View source for Yarnemia

{{Short description|Extinct genus of marine filter feeders}}
{{Speciesbox
| fossil_range = {{fossil range| 557}}
| image = Yarnemia acidiformis.jpg
| image_caption = reconstruction as a tunicate-like animal
| parent_authority = Nesov in Chistyakov et al., 1984
| taxon = Yarnemia ascidiformis
| authority = Nesov in Chistyakov et al., 1984
}}
'''''Yarnemia ascidiformis''''' is a [[fossil]] tentatively classified as a [[tunicate]]. While ''Y. ascidiformis'' looks similar to tunicates, the oldest unequivocal tunicate, ''[[Shankouclava]]''<ref>Chen, Jun-Yuan, et al. "The first tunicate from the Early Cambrian of South China." Proceedings of the National Academy of Sciences 100.14 (2003): 8314-8318.</ref> dates to the [[Cambrian]] period, while ''Y. ascidiformis'' is [[Ediacaran]] in age.<ref>[http://www.ucmp.berkeley.edu/chordata/urochordata.html University of California Museum of Paleontology Berkeley]</ref><ref name=Chistyakov_et_al_1984>{{Cite journal
| author = Chistyakov, V.G.
| author2 = Kalmykova, N.A.
| author3 = Nesov, L.A.
| author4 = Suslov, G.A.
| name-list-style=amp
| year = 1984
| title = О наличии вендских отложений в среднем течении р. Онеги и возможном существовании оболочечников (Tunicata: Chordata) в докембрии
|trans-title= On the Presence of Vendian Deposits in the Middle Course of the Onega River and Presumable Existence of Tunica (Tunicata: Chordata) in Precambrian
| journal = Vest. Leningrad. Gos. Univ. (LGU)
| volume = 6
| pages = 11–19
| url = http://vend.paleo.ru/pub/Chistyakov_et_al_1984.pdf
| language = Russian
| archive-url=https://web.archive.org/web/20070207064301/http://vend.paleo.ru/pub/Chistyakov_et_al_1984.pdf
|archive-date=February 7, 2007
}}</ref>
==Etymology==
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]].
==See also==
Other Ediacaran biota tentatively identified as tunicates include
* ''[[Ausia fenestrata]]''
* ''[[Burykhia hunti]]''
==References==
{{Reflist}}
{{Tunicata|F.}}
{{Taxonbar|from1=Q21078726|from2=Q8049424}}
[[Category:Ediacaran life]]
[[Category:Tunicate genera]]
[[Category:Prehistoric chordate genera]]
[[Category:Fossil taxa described in 1984]]
{{tunicata-stub}}
{{Ediacaran-stub}}
{{Precambrian-animal-stub}}
{{paleo-deuterostome-stub}}