Genus
Paratetragraptus Obut, 1957
Selection of related publications
Egenhoff, S., Maletz, J. 2007. Graptolites as indicators of maximum flooding surfaces in monotonous deep-water self successions. Palaios 22, 4, 373-383. DOI:10.2110/palo.2005.p05-096r
Kaljo, D. 1974. On graptolite zones of Tremadoc and Arenig of Pribaltic and Moscow syneclises.Graptolites of the USSR , pp. 31-36. Nauka.
List of species
1. Paratetragraptus approximatus (Nicholson, 1873) | Floian
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Dichograptina |
| Family | Phyllograptidae |
| Genus | Paratetragraptus |
| Species | approximatus |
| Genus | Pendeograptus |
| Phyllograptus | |
| Pseudophyllograptus | |
| Pseudotrigonograptus | |
| Tshallograptus |
References based on distribution
- Kaljo, 1974 Lyubim 1 borehole, Jaroslavl oblast Lower Ordovician
- Kaljo, 1974 Lyubim 2 borehole, Jaroslavl oblast Lower Ordovician
- Egenhoff & Maletz, 2007 Diabasbrottet quarry, Sweden Lower Ordovician