Search for family Geisonoceratidae returned 38 results.
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genus: Ordogeisonoceras
Kingdom: Animalia
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genus: Nilssonoceras
Kingdom: Animalia
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genus: Temperoceras
Kingdom: Animalia
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genus: Virgoceras
Kingdom: Animalia
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genus: Ugooloceras
Kingdom: Animalia
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genus: Angeisonoceras
Kingdom: Animalia
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genus: Geisonoceras
Kingdom: Animalia
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genus: Protokionoceras
Kingdom: Animalia
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species: Protokionoceras fessicancellatum
Kingdom: Animalia
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species: Protokionoceras strandi
Kingdom: Animalia