Genus
Protolyellia Torell, 1870
Aiheeseen liittyvät julkaisut
Seilacher, A., Goldring, R. 1996. Class Psammocorallia (Coelenterata, Vendian‐Ordovician): Recognition, systematics, and distribution. GFF 118, 4, 207-216. DOI:10.1080/11035899609546256
List of species
1. Protolyellia princeps Torell, 1870 | Dominopol Stage
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Cnidaria |
| Class | Psammocorallia |
| Genus | Protolyellia |
| Species | benderi |
| princeps | |
| simplex | |
| Genus | Spatangopsis |