Genus
Pragnellia Leith, 1952
Selection of related publications
Kaljo, D., Klaamann, E. 1965. The fauna of the Portrane limestone, III. The Corals. Bulletin of the British Museum (Natural History) Geology 10, 11, 413-434.
List of species
1. Pragnellia arborescens Leith, 1952 | Upper Ordovician
Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Cnidaria |
| Subphylum | Anthozoa |
| Subclass | Tabulata |
| Superorder | Heliolitoidea |
| Suborder | Heliolitina |
| Superfamily | Coccoseridicae |
| Family | Coccoserididae |
| Palaeoporitidae | |
| Pycnolithidae | |
| Genus | Pragnellia |
| Species | arborescens |
| Genus | Urceopora |