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Pterobranchia - Bireclinata
"The form of cellules in the peculiar group of which G. ramosus may be considered the type.... should be separated from Graptolithus proper for the same reason, forming a sub-generic group, for which I suggest the name of Dicranograptus."
It was reranked as Dicranograptus by Bulman (1970), Sepkoski (2002), Mitchell et al. (2007) and Chen et al. (2016).
It was assigned to Climacograptus by Hall (1865); to Graptoloidea by Sepkoski (2002); to Dicranograptacea by Mitchell et al. (2007); and to Dicranograptidae by Bulman (1970) and Chen et al. (2016).
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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.