Ellesmerocerida Flower et Kummel, 1950

Valik taksonit käsitlevast teaduskirjandusest
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King, A. H. 1998. A review of the cyclostomiceratid nautiloids, including new taxa from the Lower Ordovician of Öland, Sweden. Palaeontology 41, 2, 335 – 347.
Mutvei, H., Stumbur, H. 1971. Remarks on the Genus Pictetoceras (Cephalopoda: Ellesmerocerida). Bulletin of the Geological Institutions of the University of Uppsala 2, 13, 117-122.
Foerste, A. F. 1932. The cephalopod genera Cyrtendoceras and Oelandoceras. The Ohio Journal of Science 32, 3, 163-172.
King, W. 1846. Remarks on certain genera belonging to the class Palliobranchiata XI. Annals and Magazine of Natural History 18, 117, 83-94. DOI:10.1080/037454809496570