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 | ... OCERATIDE ... (6 elements)fr (3) : DENDROCERATIDE · DENDROCERATIDES pt (3) : ACANTOCERATIDEA · ACANTOCERATIDEAS · ACANTOCERATIDEOS |
 | ACANTOCERATIDEA · ACANTOCERATIDEAS · ACANTOCERATIDEOS · DENDROCERATIDE · DENDROCERATIDES ... OCERATID ... (13 elements) ACANTOCERATIDEA · ACANTOCERATIDEAS · ACANTOCERATIDEOS · ANCYLOCERATIDA · DENDROCERATIDA · DENDROCERATIDE · DENDROCERATIDES · OCHYROCERATIDAE · ORTHOCERATIDAE · ORTOCERATIDA |
 | ... OCERATIDEA ... (2 elements) ACANTOCERATIDEA · ACANTOCERATIDEAS ... OCERATIDEO ... (1 element) ACANTOCERATIDEOS ... OCERATIDES ... (1 element) DENDROCERATIDES ... ROCERATIDE ... (3 elements) DENDROCERATIDE · DENDROCERATIDES ... TOCERATIDE ... (3 elements) ACANTOCERATIDEA · ACANTOCERATIDEAS · ACANTOCERATIDEOS |