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Type specimen, posterior
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Type specimen, frontal
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Type specimen, lateral
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Monarthrum septulosum specimen, dorsal view
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Type specimen, dorsal
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Type specimen, frontal
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Monarthrum septulosum specimen, posterior view
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Monarthrum septulosum specimen, lateral view
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Monarthrum septulosum specimen, frontal view
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Type specimen, posterior
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Type specimen, lateral
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Monarthrum insidiosum specimen, posterior view
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Type specimen, lateral
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Type specimen, dorsal
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Type specimen, posterior
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Monarthrum insidiosum specimen, frontal view
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Type specimen, frontal
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Monarthrum insidiosum specimen, lateral view
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Monarthrum insidiosum specimen, dorsal view
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Monarthrum quercum specimen, dorsal view
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Monarthrum quercum specimen, frontal view
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Monarthrum quercum specimen, posterior view
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Monarthrum quercum specimen, lateral view
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Type specimen, posterior