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| Triceratium armatum var. alpha Brightwell 1856 |
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| Triceratium armatum var. beta Brightwell 1856 |
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| Triceratium armatum var. gamma Brightwell 1856 |
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| Triceratium brachiatum Brightwell 1856 |
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| Triceratium coniferum Brightwell 1856 |
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| Triceratium favus var. beta Brightwell 1856 |
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| Triceratium formosum Brightwell 1856 |
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| Triceratium horridum Brightwell 1856 |
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| Triceratium marginatum Brightwell 1856 |
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| Triceratium marylandicum Brightwell 1856 |
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| Triceratium orbiculatum sensu Brightwell 1856 |
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| Triceratium parmula Brightwell 1856 |
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| Triceratium punctatum Brightwell 1856 |
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| Triceratium radiatum Brightwell 1856 |
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| Triceratium tabellarium Brightwell 1856 |
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| Triceratium truncatum Brightwell 1856 |
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| Triceratium variable Brightwell 1856 |
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| Triceratium venosum Brightwell 1856 |
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