Yongdongaspis
Extinct genus of jawless vertebrates
From Wikipedia, the free encyclopedia
Yongdongaspis, colloquially known as the Binhai Yongdong,[1][2] is an extinct genus of galeaspid vertebrates 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: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Galeaspida |
| Order: | †Eugaleaspidiformes |
| Family: | †Yongdongaspididae Chen et al., 2022 |
| Genus: | †Yongdongaspis Chen et al., 2022 |
| Species: | †Y. littoralis |
| Binomial name | |
| †Yongdongaspis littoralis Chen et al., 2022 | |
Discovery and naming
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]
