Genus
Tettragonis Eichwald, 1842
Selection of related publications
Brummer, G. J. A. 1979. Palaeobiology of Tetragonis sulcata d'Eichwald, 1860, an Ordovician receptaculite in erratics from the northern Netherlands. Scripta Geologica 53, 1-40.
Eichwald, E. 1860. Lethaea Rossica ou Paléontologie de la Russie. Premier volume. Ancienne Période en deux sections. pp. XIX+1–1657. E. Schweizerbart. DOI:10.5962/bhl.title.52391
Eichwald, E. 1855. Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode. Bulletin de la Société Imperiale des Naturalistes de Moscou 28, 4, 433-466.
List of species
1. Tettragonis murchisonii Eichwald, 1842 | Ordovician
2. Tettragonis parvipora Eichwald, 1855 | Ordovician
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Classification
| Organism group | Biota |
| Incertae sedis (fossils) | |
| Phylum | Receptaculita |
| Order | Receptaculitales |
| Family | Tettragonaceae |
| Genus | Tettragonis |
| Species | murchisonii |
| parvipora | |
| sulcata |
References based on distribution
- Eichwald, 1855a Tallinn
- Eichwald, 1855a Kirna
- Brummer, 1979
- Brummer, 1979
- Eichwald, 1860a Tallinn