Yongdongaspis

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
Temporal range: Llandovery,
~ Telychian
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
†Galeaspida
Order:
†Eugaleaspidiformes
Family:
†Yongdongaspididae

Chen et al., 2022
Genus:
†Yongdongaspis

Chen et al., 2022
Binomial name
†Yongdongaspis littoralis
Chen et al., 2022

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] Based on this holotype, Yongdongaspis only grew to around 5 centimetres (2.0 in) long.[2][3]

See also

References
  1. "Over 400-mln-yr-old fossil of fish found in China - China.org.cn". www.china.org.cn.
  2. "They find remains of a fish that lived 400 million years ago". March 4, 2022.
  3. 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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