Genus
Protocrisina Ulrich, 1890
Aiheeseen liittyvät julkaisut
Bekker, H. 1921. The Kuckers stage of the Ordovician Rocks in NE Estonia. Acta et Commentationes Universitatis Tartuensis II, 1, 1-92.
List of species
1. Protocrisina disposita Bekker, 1921 | Kukruse Stage
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Luokittelu
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Bryozoa |
| Class | Stenolaemata |
| Superorder | Palaeostomata |
| Order | Fenestrata |
| Subfamily | Phylloporinina |
| Family | Enalloporidae |
| Genus | Aluverina |
| Alwynopora | |
| Arthrostylus | |
| Chasmatoporella | |
| Conphylloporina | |
| Enallopora | |
| Heminematopora | |
| Kielcepora | |
| Protocrisina | |
| Species | disposita |
| Genus | Pushkinella |