''Sinamia'' is an extinct genus of
amiiform fish which existed in
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
,
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
, and possibly
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...
during the Early
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ...
period.
Like the related
bowfin, it has an elongated low-running dorsal fin, though this was likely
convergently evolved
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last com ...
.
Taxonomy
After
* ''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
The Yixian Formation (; formerly transcribed as Yihsien Formation) is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans the late Barremian and early Aptian stages of the Early Cretaceous. It is known for its ex ...
,
Jiufotang Formation
The Jiufotang Formation ( Chinese: 九佛堂组, pinyin: ''jiǔfótáng zǔ'') is an Early Cretaceous geological formation in Chaoyang, Liaoning which has yielded fossils of feathered dinosaurs, primitive birds, pterosaurs, and other organisms (see ...
, Liaoning, China, Early Cretaceous (
Aptian
The Aptian is an age in the geologic timescale or a stage in the stratigraphic column. It is a subdivision of the Early or Lower Cretaceous Epoch or Series and encompasses the time from 121.4 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), a ...
)
* ''Sinamia kukurihime'' Yabumoto, 2014
Kuwajima Formation
The Kuwajima Formation is an Early Cretaceous geologic formation in Japan. Its precise age is uncertain due to a lack of identifying fossils, and it was previously considered likely Valanginian to Hauterivian in age. However, it is now considered ...
, Ishikawa, Japan, Early Cretaceous (
Barremian
The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 129.4 ± 1.5 Ma (million years ago) and 121.4 ± 1.0 Ma). It is a subdivision of the Early Cretaceous Epoch (or Lower Cretaceous Series). It is precede ...
)
* ''Sinamia lanzhoensis'' Peng, Murray, Brinkman, Zhang and You, 2015
Hekou Group
The Hekou Group is a geological group in Gansu Province, China. It is Early Cretaceous in age. Dinosaur body fossils have also been recovered from the Hekou Group, including the iguanodont '' Lanzhousaurus'' and the titanosaurs ''Daxiatitan'', ...
, Gansu, China, Early Cretaceous
References
Amiiformes
Prehistoric ray-finned fish genera
Cretaceous bony fish
Early Cretaceous fish of Asia
Cretaceous China
Fossils of China
Paleontology in Shandong
{{Amiiformes-stub