Sinamia Explained

Sinamia is an extinct genus of freshwater amiiform fish which existed in China, Japan, South Korea^[1] and North Korea^[2] during the Early Cretaceous period.^[3] Like the related bowfin, it has an elongated low-running dorsal fin, though this was likely convergently evolved.^[4]

Taxonomy

After^[4]

• Sinamia zdanskyi Stensiö, 1935 Meng-Yin Formation, Shangdong, China, Early Cretaceous
• Sinamia huananensis Su, 1973 Yangtang Formation, Anhui, China, Early Cretaceous
• Sinamia chinhuaensis Wei, 1976 Guantou Formation, Zhejiang, China, Early Cretaceous
• Sinamia luozigouensis Li, 1984 Luozigou Formation, Jilin, China, Early Cretaceous
• Sinamia poyangica Su and Li, 1990 Shixi Formation, Jiangxi, China, Early Cretaceous
• Sinamia liaoningensis Zhang, 2012 Yixian Formation, Jiufotang Formation, Liaoning, China, Early Cretaceous (Aptian)
• Sinamia kukurihime Yabumoto, 2014 Kuwajima Formation, Ishikawa, Japan, Early Cretaceous (Barremian)
• Sinamia lanzhoensis Peng, Murray, Brinkman, Zhang and You, 2015 Hekou Group, Gansu, China, Early Cretaceous

Notes and References

1. Yabumoto. Y.. Yang. S.Y.. Kim. T.W.. 2006. Early Cretaceous freshwater fishes from Japan and Korea. Journal of the Paleontological Society of Korea. 22. 1. 119–132. 53309909.
2. Kim . Phyong-Song . Ri . Sang-Ryong . An . Yong-Il . Kim . Myong-Hak . Pak . Kwang-Hyok . Jo . Kang-Song . So . Kwang-Sik . First occurrence of Sinamia (Amiiformes, Sinamiidae) from the Upper Cretaceous Seson Formation, Democratic People's Republic of Korea . Cretaceous Research . November 2023 . 151 . 105633 . 10.1016/j.cretres.2023.105633.
3. Book: Proceedings of the Seventh Annual Meeting of the Chinese Society of Vertebrate Paleontology . Vertebrate assemblages of the Jehol Biota in western Liaoning, China . Xiaolin Wang . Yuanqing Wang . Fan Jin . Xing Xu . Yuan Wang . amp . 1999 . Yuanqing Wang . Tao Deng . . Beijing . 1–12.
4. Yabumoto. Yoshitaka. January 2017. A Revision of the Amiiform Fish Genus Sinamia with Phylogeny of Sinamiidae. Paleontological Research. en. 21. 1. 76–92. 10.2517/2016PR008. 90701678. 1342-8144.