Family
Spinagnostidae Howell, 1935
Luokittelu
Organism group | Biota |
Kingdom | Animalia |
Phylum | Arthropoda |
Subphylum | Trilobita |
Order | Agnostida |
Suborder | Agnostina |
Eodiscina | |
Family | Clavagnostidae |
Diplagnostidae | |
Glyptagnostidae | |
Ptychagnostidae | |
Spinagnostidae | |
Genus | Cotalagnostus |
Doryagnostus | |
Hypagnostus | |
Peratagnostus | |
Tomagnostella |