Genus
Semiplectograptus Kozłowska-Dawidziuk, 1995
Selection of related publications
Kozłowska-Dawidziuk, A. 1995. Silurian retiolitids of the East European Platform. Acta Palaeontologica Polonica 40, 3, 261-326.
List of species
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Axonophora |
| Superfamily | Retiolitoidea |
| Family | Retiolitidae |
| Subfamily | Plectograptinae |
| Genus | Agastograptus |
| Cometograptus | |
| Eisenackograptus | |
| Giganteograptus | |
| Holoretiolites | |
| Kirkigraptus | |
| Neogothograptus | |
| Paraplectograptus | |
| Plectodinemagraptus | |
| Plectograptus | |
| Pseudoplectograptus | |
| Semiplectograptus | |
| Species | urbaneki |
| Genus | Sokolovograptus |
| Spinograptus |