Xiushan Formation
| Xiushan Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Location | |
| Region | Southern China |
| Country | China |
| Type section | |
| Named for | Xiushan County |
The Xiushan Formation is a palaeontological formation located in China. It dates to the Lower Silurian period. Studies of conodonts found in the formation suggests the lower member and main part of the upper member correspond to the Pterospathodus eopennatus Superbiozone, whereas the top of the upper member likely correlates with the Pterospathodus celloni Superbiozone.[1]
Fossil content
[edit]Cartilaginous fish
[edit]| Cartilaginous fish reported from the Xiushan Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Chenolepis | C. asketa | Guizhou.[2] | Scales.[2] | Also known from the Ymogantau Formation. | |
Jawless fish
[edit]| Jawless fish reported from the Xiushan Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Dayongaspis | D. colubra | Maoyanhe Town, Zhangjiajie, Hunan.[3] | A galeaspid. | ||
Invertebrates
[edit]Eurypterids
[edit]| Eurypterids reported from the Xiushan Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Terropterus | T. xiushanensis | Xiushan.[4] | Several specimens.[4] | A mixopterid. |  |
See also
[edit]References
[edit]- ↑ Chen, Zhongyang; Wang, Chengyuan; Fan, Ru (2016-02-16). Jin, Jisuo (ed.). "Restudy of the Llandovery conodont biostratigraphy in the Xiushan area, Chongqing City, China". Canadian Journal of Earth Sciences. 53 (7): 651–659. Bibcode:2016CaJES..53..651C. doi:10.1139/cjes-2015-0189. ISSN 0008-4077.
- 1 2 Andreev, Plamen S.; Zhao, Wenjin; Wang, Nian-Zhong; Smith, Moya M.; Li, Qiang; Cui, Xindong; Zhu, Min; Sansom, Ivan J. (2020-02-13). Wong, William Oki (ed.). "Early Silurian chondrichthyans from the Tarim Basin (Xinjiang, China)". PLOS ONE. 15 (2) e0228589. Bibcode:2020PLoSO..1528589A. doi:10.1371/journal.pone.0228589. ISSN 1932-6203. PMC 7018067. PMID 32053606.
- ↑ Zhang, Yumeng; Li, Xutong; Shan, Xianren; Lin, Xianghong; Tan, Kai; Li, Qiang; Zhao, Wenjin; Tang, Lizhou; Zhu, Min; Gai, Zhikun (2023-06-19). "The first galeaspid fish (stem-gnathostomata) from the Silurian Xiushan formation of Hunan Province, China". Historical Biology: 1–12. doi:10.1080/08912963.2023.2225083. ISSN 0891-2963. S2CID 259469524.
- 1 2 Wang, Han; Dunlop, Jason; Gai, Zhikun; Lei, Xiaojie; Jarzembowski, Edmund A.; Wang, Bo (November 2021). "First mixopterid eurypterids (Arthropoda: Chelicerata) from the Lower Silurian of South China". Science Bulletin. 66 (22): 2277–2280. Bibcode:2021SciBu..66.2277W. doi:10.1016/j.scib.2021.07.019. PMID 36654455.
- Vickers-Rich, Patricia & Rich, Thomas Hewett (1993); Wildlife of Gondwana. Reed. ISBN 0-7301-0315-3
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