Siyingia

Superregnum: Eukaryota
Cladus: Amorphea
Cladus: Obazoa
Cladus: Opisthokonta
Cladus: Holozoa
Cladus: Filozoa
Cladus: Choanozoa
Regnum: Animalia
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Olfactores
Subphylum: Vertebrata
Classis: †Galeaspida
Superordo: †Polybranchiaspidida
Ordo: †Polybranchiaspidiformes
Familia: †Polybranchiaspididae
Genus: †Siyingia
Species:

†S. altuspinosa – †S. perlatuspinosa

Name

†Siyingia Wang & Wang, 1982

• Type species: †Siyingia altuspinosa Wang & Wang, 1982

Etymology: .

References

• Wang, N. & Wang, J. 1982. 记一新的无颌类化石兼论多鳃鱼类的分类地位 [On the polybranchiaspid Agnatha and the phylogenetical position of Polybranchiaspiformes.] Vertebrata PalAsiatica 20(2): 99–105. (in Chinese, with English abstract) PDF. Reference page.