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Geisonocerina is an
extinct genus from the
carnivorous nautiloid cephalopod order Orthocerida that
lived in what
would be
North America, Europe, and Asia...
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radiatus †Eucalyptocrinites †Eucalyptocrinites cr****us †Favosites †
Geisonocerina †Hadromeros †Halysites †Harpidium †Hexameroceras †Holopea †Howella †Hyolithes...
- †Gangshanoceras †Garryoceras †Gasconsoceras †Gaspocyrtoceras †Geisonoceras †
Geisonocerina †Geisonoceroides †Geitonoceras †Georgina †Germanonautilus †Glenisteroceras...
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species of Euloxoceras.
Geisonocerina dargazense Sp. nov
Valid Ghavidel-Syooki et al.
Ordovician (Katian) Iran A
species of
Geisonocerina.
Haboroteuthis Gen...
- E F G H I J K L M N O P Q R S T U V W X Y Z †Gabriceraurus †
Geisonocerina †
Geisonocerina wauwatosense †Glomospirella †Glomospirella
exserta †Gomophocystites...
