Family
Baltoceratidae Kobayashi, 1935
Selection of related publications
King, A. H. 1999. A Review of Volkhovian and Kundan (Arenig-Llanvirn) Nautiloids from Sweden.  Advancing Research on Living and Fossil Cephalopods, pp. 137-159.   Springer.  DOI:10.1007/978-1-4615-4837-9_11
Alichova, T. N., Balashova, E. A., Balashov, Z. G. 1954. Polevoj atlas harakternyh kompleksov fauny otloženij ordovika i gotlandiâ ûžnoj časti Litovskoj SSR. pp. 1-80.  Nedra. 
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
List of species
2. Cochlioceras avus Eichwald, 1860 | Kunda Stage
3. Eosomichelinoceras tortum (Angelin, 1880) | Aseri Stage
4. Hedstroemoceras haelluddense Foerste, 1930 | Ordovician
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Mollusca | 
| Class | Cephalopoda | 
| Subclass | Orthoceratia | 
| Order | Orthocerida | 
| Suborder | Orthoceratina | 
| Family | Baltoceratidae | 
| Genus | Cochlioceras | 
| Eosomichelinoceras | |
| Hedstroemoceras | |
| Family | Choanoceratidae | 
| Kionoceratidae | |
| Stereoplasmoceratidae | |
| Genus | Tripteroceras |