Family
Ormoceratidae Saeman, 1853
Aiheeseen liittyvät julkaisut
Kröger, B., Aubrechtová, M. 2018. Cephalopods from reef limestone of the Vasalemma Formation, northern Estonia (latest Sandbian, Upper Ordovician) and the establishment of a local warm-water fauna. Journal of Systematic Palaeontology 16, 10, 799-839. DOI:10.1080/14772019.2017.1347212
Saladžius, V. J. 1971. Cephalopods of the Ludlowian and Downtonian deposits of the Upper Silurian of the Southern Baltic area. Palaeontology and stratigraphy of the Baltic and Byelorussia. Number III, pp. 205-208. Mintis.
Sweet, W. C. 1958. The Middle Ordovician of the Oslo Region, Norway: 10. Nautiloid Cephalopods. Norsk Geologisk Tidsskrift 38, 1, 1-178.
Balashov, Z. G. 1955. Nekotorye novye rody i vidy nautiloidej ordovika Pribaltiki. Voprosy paleontologii II, 45-54. Izdatel'stvo Leningradskogo Universiteta.
Teichert, C. 1930. Die Cephalopoden-Fauna der Lyckholm-Stufe des Ostbaltikums. Paläontologische Zeitschrift 12, 3/4, 264-312. DOI:10.1007/BF03044452
List of species
1. Adamsoceras holmi (Troedsson, 1926) | Kunda Stage
2. Aluveroceras ievense Balashov, 1955 | Jõhvi Substage
4. Ormoceras estonicum Balashov, 1955 | Lasnamägi Stage
5. Ormoceras heckeri Teichert, 1930 | Pirgu Stage
6. Ormoceras kiaeri Sweet, 1958 | Katian
7. Ormoceras lapense Saladzhius, 1966 | Ludlow
8. Ormoceras schmidti Balashov, 1955 | Kunda Stage
10. Orthonybyoceras cf. dyeri (Miller, 1875) | Keila Stage
11. Orthonybyoceras isakari Kröger et Aubrechtová, 2018 | Keila Stage
12. Orthonybyoceras moisense Kröger et Aubrechtová, 2018 | Keila Stage
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Actinoceratoidea |
| Order | Actinocerida |
| Family | Actinoceratidae |
| Armenoceratidae | |
| Gonioceratidae | |
| Huroniidae | |
| Ormoceratidae | |
| Genus | Adamsoceras |
| Aluveroceras | |
| Ormoceras | |
| Orthonybyoceras | |
| Species | Sactoceras |