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Type specimen, frontal
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Monarthrum desum specimen, posterior view
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Monarthrum desum specimen, dorsal view
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Type specimen, dorsal
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Type specimen, lateral
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Type specimen, posterior
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Monarthrum desum specimen, frontal view
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Type specimen, frontal
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Type specimen, dorsal
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Type specimen, lateral
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Type specimen, posterior
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Monarthrum sulcatum specimen, lateral view
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Monarthrum sulcatum specimen, frontal view
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Monarthrum sulcatum specimen, posterior view
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Monarthrum sulcatum specimen, dorsal view
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Monarthrum sulcatum specimen, posterior view
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Monarthrum sulcatum specimen, lateral view
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Monarthrum sulcatum specimen, dorsal view
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Monarthrum sulcatum specimen, frontal view
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Type specimen, lateral
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Type specimen, posterior
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Type specimen, frontal
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Type specimen, dorsal
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Monarthrum dentifrons specimen, frontal view