| 1. | As the type specimen is poorly preserved it is considered nomen dubium.
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| 2. | It is today often considered a " nomen dubium ".
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| 3. | Most researchers today consider it a " nomen dubium ".
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| 4. | This is today often considered a " nomen dubium ".
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| 5. | Genus and species are thus a " nomen dubium ".
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| 6. | It is a nomen dubium because it is based on very fragmentary remains.
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| 7. | Kevin Padian in 1989 considered it a nomen dubium.
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| 8. | He also concluded that it was a " nomen dubium ".
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| 9. | The most recent review considers it to be a nomen dubium without further comment.
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| 10. | The taxon is today commonly seen as a " nomen dubium ".
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