Traits taxon details
original description
Evans, D. H.; King, A. H. (1990). The affinities of early oncocerid nautiloids from the Lower Ordovician of Spitsbergen and Sweden. <em>Palaeontology.</em> 33: 623–630. [details] Available for editors 
basis of record
Kröger, B.; Mutvei, H. (2005). Nautiloids with multiple paired muscle scars from lower-middle Ordovician of Baltoscandia. <em>Palaeontology.</em> 48(4): 781-791., available online at https://doi.org/10.1111/j.1475-4983.2005.00478.x [details]
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