| 21. | O'Connor and Dyke therefore considered " C . caudatus " a nomen dubium.
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| 22. | However, due to the lack of certainty, the name is currently considered a nomen dubium.
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| 23. | Since only one bone was discovered, the genus is considered a " nomen dubium ".
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| 24. | This species is considered a nomen dubium by Tucker in his " Catalog of recent and fossil turrids"
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| 25. | Today it is seen as a " nomen dubium ", an indeterminate member of the Theropoda.
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| 26. | Today it is commonly considered to be a " nomen dubium " because of the limited remains.
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| 27. | They denied the taxon was a " nomen dubium " as has been concluded by several authors.
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| 28. | As the fossil itself is apparently lost, this makes the genus a " nomen dubium ".
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| 29. | The genus is solely based on some conical teeth and often considered a " nomen dubium ".
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| 30. | However, the species was later considered a " nomen dubium " in both reviews of Stegosauria.
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