Shankouclava: Difference between revisions
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'''''Shankouclava''''' is an extinct genus of [[tunicate]]. It represents the oldest, unequivocal genus of tunicates, from 520 million years ago. It has been found in the [[Lower Cambrian]] [[Maotianshan Shale]] at Shankou village, [[Anning, Yunnan|Anning]], near [[Kunming]] ([[South China]]). Each of the eight specimens found and used for description were isolated, suggesting that the genus was [[Solitary animal|solitary]] and not [[Colony (biology)|colonial]]. The generic name is composed of the fossil locality, Shankou, and the [[Latin]] word ''clava'' (club-shaped).<ref name=":1">{{cite journal|author1=Chen, Jun-Yuan |author2=Huang, Di-Ying |author3=Peng, Qing-Qing |author4=Chi, Hui-Mei |author5=Wang,Xiu-Qiang |author6=Feng, Man |year=2003 |title=The first tunicate from the Early Cambrian of South China |journal=Proceedings of the National Academy of Sciences |volume=100 |pmid=12835415 |issue=14 |pages=8314–8318 |pmc=166226 |doi=10.1073/pnas.1431177100 }}</ref> |
'''''Shankouclava''''' is an extinct genus of [[tunicate]]. It represents the oldest, unequivocal genus of tunicates, from 520 million years ago. It has been found in the [[Lower Cambrian]] [[Maotianshan Shale]] at Shankou village, [[Anning, Yunnan|Anning]], near [[Kunming]] ([[South China]]). Each of the eight specimens found and used for description were isolated, suggesting that the genus was [[Solitary animal|solitary]] and not [[Colony (biology)|colonial]]. The generic name is composed of the fossil locality, Shankou, and the [[Latin]] word ''clava'' (club-shaped).<ref name=":1">{{cite journal|author1=Chen, Jun-Yuan |author2=Huang, Di-Ying |author3=Peng, Qing-Qing |author4=Chi, Hui-Mei |author5=Wang,Xiu-Qiang |author6=Feng, Man |year=2003 |title=The first tunicate from the Early Cambrian of South China |journal=Proceedings of the National Academy of Sciences |volume=100 |pmid=12835415 |issue=14 |pages=8314–8318 |pmc=166226 |doi=10.1073/pnas.1431177100 }}</ref> |
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''Shankouclava'' had a soft |
''Shankouclava'' had a soft and sac-like body, though elongated and pointed proximally. The body lengths of individuals vary from 2 cm (0.8 in) to 4 cm (1.6 in).<ref name=":1" /> |
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==References== |
==References== |
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Revision as of 16:56, 3 April 2019
| Shankouclava Temporal range: Cambrian Stage 3
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| Restoration of S. anningense. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Tunicata |
| Genus: | †Shankouclava Chen et al., 2003 |
| Type species | |
| †Shankouclava anningense Chen et al., 2003
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| Species | |
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Shankouclava is an extinct genus of tunicate. It represents the oldest, unequivocal genus of tunicates, from 520 million years ago. It has been found in the Lower Cambrian Maotianshan Shale at Shankou village, Anning, near Kunming (South China). Each of the eight specimens found and used for description were isolated, suggesting that the genus was solitary and not colonial. The generic name is composed of the fossil locality, Shankou, and the Latin word clava (club-shaped).[1]
Shankouclava had a soft and sac-like body, though elongated and pointed proximally. The body lengths of individuals vary from 2 cm (0.8 in) to 4 cm (1.6 in).[1]
References
- ^ a b Chen, Jun-Yuan; Huang, Di-Ying; Peng, Qing-Qing; Chi, Hui-Mei; Wang,Xiu-Qiang; Feng, Man (2003). "The first tunicate from the Early Cambrian of South China". Proceedings of the National Academy of Sciences. 100 (14): 8314–8318. doi:10.1073/pnas.1431177100. PMC 166226. PMID 12835415.
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