| 21. | Most have been moved here from distinct genera, which are now considered junior synonyms.
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| 22. | Minicheviellidae is a junior synonym of Asperspinidae.
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| 23. | If this classification is accepted, Brevirostres can be considered a junior synonym of Crocodylia.
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| 24. | Today this is usually seen as a junior synonym of " Troodon formosus ".
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| 25. | However, Sirotti demonstrated that it is a junior synonym of " Mosasaurus ".
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| 26. | Although in 1809, ICZN, so that the junior synonym could continue to be used.
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| 27. | Bucquoy, Dautzenberg & Dollfus, 1883 is a junior synonym of " Bellaspira"
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| 28. | It was formerly regarded as a junior synonym of the genus " Dasyatis ".
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| 29. | Seven subspecies are today considered valid; others have been described that are now considered junior synonyms.
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| 30. | The genus name should now be regarded as a junior synonym of " Schistosoma ".
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