Cephalopoda
sugukond

Ormoceratidae Saeman, 1853

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Valik taksonit käsitlevast teaduskirjandusest
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.
Sweet, W. C. 1958. The Middle Ordovician of the Oslo Region, Norway: 10. Nautiloid Cephalopods.Norsk Geologisk Tidsskrift 38 , 1,1-176.
Balashov, Z. G. 1955. Nekotorye novye rody i vidy nautiloidej ordovika Pribaltiki.Voprosy paleontologii II , 45-54.
Stumbur, H. 1955. Eesti NSV ülem-ordoviitsiumi nautiloiididest [Diplomitöö].
Teichert, C. 1930. Die Cephalopoden-Fauna der Lyckholm-Stufe des Ostbaltikums.Paläontologische Zeitschrift 12 , 3/4,264-312. DOI:10.1007/BF03044452