ecofactbook
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species
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Animalia
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Mollusca
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Gastropoda
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Platyceratidae
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Barynema
Compsonema
Crossoceras
Cyclonema
Cyclonemina
Diaphorostoma
Distemnostoma
Dyeria
Keeneia
Naticonema
Orthonychia
Palaeocapulus
Paraplatyschisma
Platyceras
Platyostoma
Ptychospirina
Rhineoderma
Spinyplatyceras
Strophostylus
Turbonellina
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