Yongdongaspis, colloquially known as the Binhai Yongdong,[1][2] is an extinct genus of galeaspid within the monotypic family Yongdongaspididae. The type species is Y. littoralis and it was found in the Silurian-aged Huixingshao Formation of China.[3] This makes it the oldest known fish fossil discovered in Chongqing to date.
| Yongdongaspis | |
|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Family: | †Yongdongaspididae Chen et al., 2022
|
| Genus: | †Yongdongaspis Chen et al., 2022
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| Binomial name | |
| †Yongdongaspis littoralis Chen et al., 2022
| |
Discovery and naming edit
The holotype was excavated in July 2020 and was prepared in 2021, before being named as the new species Yongdongaspis littoralis in July 2022.[3]
Description edit
Based on the holotype, Yongdongaspis only grew to around 5 centimetres (2.0 in) long.[2][3]
See also edit
References edit
- ^ "Over 400-mln-yr-old fossil of fish found in China - China.org.cn". www.china.org.cn.
- ^ a b "They find remains of a fish that lived 400 million years ago". March 4, 2022.
- ^ a b c Chen, Yang; Gai, Zhikun; Li, Qiang; Wang, Jianhua; Peng, Lijian; Wei, Guangbiao; Zhu, Min (April 2022). "A New Family of Galeaspids (Jawless Stem‐Gnathostomata) from the Early Silurian of Chongqing, Southwestern China". Acta Geologica Sinica - English Edition. 96 (2): 430–439. doi:10.1111/1755-6724.14909. S2CID 247063430.
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