| 21. | The "'Pseudeurotiaceae "'are a orders with any degree of certainty ( incertae sedis ).
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| 22. | Olson and Feduccia placed the genus as Aves incertae sedis noting it was possibly a member of the order Gruiformes.
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| 23. | The Miocene Saint Bathans Fauna also preserves remains of a vesper bat and several " incertae sedis " species.
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| 24. | However, Vickaryous and others consider this assignment provisional and list the genus as Ankylosaurinae " incertae sedis ".
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| 25. | The same year Peter Wellnhofer was more careful and limited his assessment to a Pterodactyloidea " incertae sedis ".
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| 26. | The relationship of this taxon to other taxa within the class is unknown ( " incertae sedis " ).
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| 27. | The relationship of this taxon to other taxa in the class is unknown ( " incertae sedis " ).
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| 28. | The relationship of this taxon to other taxa within the order is unknown ( " incertae sedis " ).
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| 29. | OBIS ( the Indo-Pacific Molluscan Database ) declares this species an Incertae Sedis ( with uncertain taxonomic placement ).
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| 30. | Traditionally considered a metatherian " incertae sedis ", more recent analysis have shown it to be a gondwanathere.
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