liik
Ancistroceras undulatum (Boll, 1857)
Sünonüümika
1857     Lituites undulatus Boll — Boll , lk. 32-33, joon. Taf 8:25
1861     Cyrtoceras Odini Eichwald — Schmidt , lk. 473
1880     Ancistroceras undulatum (Boll) — Dewitz , lk. 386, 387–389, joon. Pl. 17:5
1881     Strombolituites undulatus (Boll) — Remelé , lk. 191-192, joon. text-fig. 1
1882     Strombolituites undulatus (Boll) — Remelé , lk. 117–119, joon. pl. 5, fig. 1
1884     Ancistroceras undulatum (Boll) — Noetling , lk. 128
1884     non Ancistroceras undulatum (Boll) — Noetling , joon. pl. 18, figs. 6, 6a
1885     Ancistroceras undulatum (Boll) — Holm , lk. 17–19, 21–24, 26, joon. pl. 3, fig. 2, pl. 4, fig. 1, 3–20
1888     Lituites (Ancistroceras) undulatus Boll — Schröder , lk. 169
1889     non Ancistroceras undulatum (Boll) — Rüdiger , lk. 44-45
Valik taksonit käsitlevast teaduskirjandusest
Aubrechtová, M., Meidla, T. 2020. Lituitid cephalopods from the upper Darriwilian and basal Sandbian (Middle–Upper Ordovician) of Estonia.  GFF   142,   4,   267-296. DOI:10.1080/11035897.2020.1762723
Sweet, W. C. 1958. The Middle Ordovician of the Oslo Region, Norway: 10. Nautiloid Cephalopods.  Norsk Geologisk Tidsskrift   38,   1,   1-178.
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Klassifikatsioon
| organismirühm | Biota | 
| riik | Animalia | 
| hõimkond | Mollusca | 
| klass | Cephalopoda | 
| alamklass | Orthoceratia | 
| selts | Astroviida | 
| alamselts | Lituitina | 
| sugukond | Lituitidae | 
| perekond | Ancistroceras | 
| liik | barrandei | 
| ristnensis | |
| torelli | |
| undulatum | |
| vahikuelaensis | 
Levik kirjandusandmetel
- Sweet, 1958 Asker, Oslo piirkond, Norra