Xiushanosteus
| Xiushanosteus Temporal range: | |
|---|---|
| Reconstruction of Xiushanosteus mirabilis | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Placodermi |
| Order: | †incertae sedis |
| Genus: | †Xiushanosteus Zhu et al, 2022 |
| Species: | †X. mirabilis |
| Binomial name | |
| †Xiushanosteus mirabilis Zhu et al, 2022 | |
Xiushanosteus is a genus of placoderm from the Huixingshao Formation of China. It contains one species, Xiushanosteus mirabilis. It is one of the earliest known jawed vertebrates, at roughly 435 million years old. Xiushanosteus is known from around 20 specimens, most of which are complete.