| 21. | As of November 2009, it was undescribed by academics.
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| 22. | This undescribed form is known as " Ninja Tatia ".
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| 23. | It is a undescribed by science as of November 2009.
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| 24. | A related undescribed species has been found in the nearby Eckfeld Maar.
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| 25. | This genus has been investigated using DNA phylogeny and undescribed species exist.
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| 26. | All appear to belong to as yet undescribed genera.
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| 27. | Some undescribed fossils from the Middle Jurassic of England may represent earlier versions.
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| 28. | Undescribed species may still exist in the Amazon Basin.
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| 29. | The species level taxonomy is complex and the family includes several undescribed species.
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| 30. | The genus contains more than 30 species, and numerous undescribed forms exist.
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