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†Nilssonoceras Kroeger 2004
urn:lsid:organismnames.com:name:1692333
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†Nilssonoceras Kroeger 2004
Kroeger 2004. Revision of Middle Ordovician orthoceratacean nautiloids from Baltoscandia. Acta Palaeontologica Polonica, 49(1), February 2004: 57-74