Paraliliaspis
| Paraliliaspis Temporal range: Early Devonian | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Pteraspidomorpha |
| Subclass: | †Heterostraci |
| Order: | †Cyathaspidiformes |
| Family: | †Ariaspidae |
| Genus: | †Paraliliaspis |
| Species: | †P. egregia |
| Binomial name | |
| †Paraliliaspis egregia Novitskaya, 1994 | |
Paraliliaspis egregia is an extinct cyathaspidiform heterostracan agnathan from early Devonian marine strata of the Ural Mountains.[1] Paraliliaspis fossils have also been found in eastern Poland.[2]
Paraliliaspis was, at various times, placed in the families Cyathaspididae, and Anglaspididae. Currently, it is placed in Ariaspidae with Ariaspis, and Listraspis, and is considered to be closely related to the similar-looking Liliaspis, which is also from Early Devonian Ural marine strata.[3] Anglaspis is considered the ancestor or sister-taxon of both Liliaspis and P. egregia.
References
- ↑ Novitskaya, L.I.; Karatajute-Talimaa, V.N.; Jurjeva, Z.P. (1994). "Paraliliaspis - новый род циатаспид (Cyathaspidiformes, Agnatha) из нижнедевонскиx отложений Тимано-Печорской провинции" [Paraliliaspis - a new genus of cyathaspids (Cyathaspidiformes, Agnatha) from the lower Devonian of the Timano-Pechorian Province]. Paleontologicheski Zhurnal (in Russian): 94–102.
- ↑ Dec, Marek (2020). "Traquairaspididae and Cyathaspididae (Heterostraci) from the Lower Devonian of Poland". Annales de Paléontologie. 106 (3) 102386. doi:10.1016/j.annpal.2019.102386.
- ↑ Randle, E.; Sansom, R.S. (2017). "Phylogenetic relationships of the 'higher heterostracans' (Heterostraci: Pteraspidiformes and Cyathaspididae), extinct jawless vertebrates". Zoological Journal of the Linnean Society. 181 (4): 910–926. doi:10.1093/zoolinnean/zlx025.