Species
Estonioceras imperfectum (Quenstedt, 1846)
Synonymy list
1821     Lituites imperfectus — Wahlenberg , pp. 84
1845     Lituites imperfectus — Quenstedt , fig. 2:17
1849     Lituites imperfectus — Quenstedt , pp. 51, fig. 2:3a,b
1860     Estonioceras imperfectum — Lossen , pp. 20
1891     Estonioceras imperfectum — Schröder , pp. 37, fig. III 2; IV 3-4
1905     Estonioceras imperfectum — Lamansky , pp. 81
1953     Estonioceras imperfectum (Quenstedt, 1846) — Balashov , pp. 220-222, fig. 2:1-3
1959     Estonioceras imperfectum — Sweet , pp. 299
1964     Estonioceras imperfectum — Chang , pp. 132-133, 138, fig. 1:5
1971     Estonioceras imperfectum — Neben & Krüger , fig. 18:4
Selection of related publications
Stumbur, H. A. 1960. On different ways of evolution of nautiloids.  Eesti NSV Teaduste Akadeemia Toimetised, Tehniliste ja Füüsikalis-matemaatiliste teaduste seeria / Известия Академии наук Эстонской ССР. Серия технических и физико-математических наук   9,   4,   368-378. DOI:10.3176/phys.math.tech.1960.4.09
Balashov, Z. G. 1953. Svernutye i polusvernutye nautiloidei ordovika Pribaltiki.  Trudy Vsesoûznogo Naučno-Issledovatel'skogo Geologo-Razvedočnogo Instituta (VNIGRI)         217-300.  Gostoptehizdat. 
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Mollusca | 
| Class | Cephalopoda | 
| Subclass | Tarphyceratia | 
| Order | Tarphyceratida | 
| Family | Estonioceratidae | 
| Genus | Estonioceras | 
| Species | ariense | 
| convolvans | |
| imperfectum | |
| impressum | |
| kundense | |
| lamellosum | |
| perforatum | 
 See also 
References based on distribution
- Balashov, 1953a Tallinn Kunda Stage
- Balashov, 1953a Paldiski Kunda Stage
- Balashov, 1953a Kunda Kunda Stage
- Balashov, 1953a Aseri Kunda Stage
- Balashov, 1953a Volkhov River outcrops Kunda Stage
- Balashov, 1953a Volkhov River outcrops Kunda Stage
- Balashov, 1953a Kotly, Leningrad District Kunda Stage