MolluscaBase source details
Troedsson G.T. (1926). On the Middle and Upper Ordovician Faunas of Northern Greenland. 1. Cephalopods. Meddelelser om Gronland. 71: 1-157.
508765
Troedsson G.T.
1926
On the Middle and Upper Ordovician Faunas of Northern Greenland. 1. Cephalopods
Meddelelser om Gronland
71: 1-157
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Actinoceras (Nybyoceras) Troedsson, 1926 † accepted as Nybyoceras Troedsson, 1926 † (original description)
Actinoceras (Nybyoceras) bekkeri Troedsson, 1926 † accepted as Nybyoceras bekkeri (Troedsson, 1926) † (original description)
Armenoceratidae Troedsson, 1926 † (original description)
Actinoceras (Nybyoceras) bekkeri Troedsson, 1926 † accepted as Nybyoceras bekkeri (Troedsson, 1926) † (original description)
Armenoceratidae Troedsson, 1926 † (original description)
