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Mammalia - Sparassodonta
It was synonymized subjectively with Borhyaenoidea by Marshall (1978); it was reranked as the order Sparassodonta by Goin et al. (2007), Forasiepi (2009), Goin et al. (2010) and Oliveira and Goin (2011).
It was assigned to Sarcobora by Ameghino (1894) and Ameghino (1897); to Marsupialia by Goin et al. (2007); to Metatheria by Forasiepi (2009); to Marsupialia by Goin et al. (2010); and to Ameridelphia by Oliveira and Goin (2011).
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.