单词	pseudoextinction
释义	pseudoextinction /ˌsjuːdəʊɪkˈstɪŋ(k)ʃ(ə)n / noun [mass noun] Palaeontology The apparent extinction of a group of organisms of which modified descendant forms survive.The nature of mass extinctions in particular has been distorted by a combination of post-extinction sampling bias and associated pseudoextinction of paraphyletic groups.... For the purpose of calculating community similarity, species that are part of possible phyletic sequences were synonymized to correct for pseudoextinction. The subsequent extinction of the family may be a pseudoextinction, because the Palaeoxanthopsidae may have given rise to many of the extant lineages comprising the Xanthoidea.
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