Pterobranchia

PaleoDB taxon number: 33809

Parent taxon: Graptolithina according to J. J. Sepkoski 2002

Sister taxa: Acanthastus, Archaeodictyota, Ascograptus, Cactograptus, Camaroidea, Ceramograptus, Chaunograptus, Coelograptus, Crinocaulis, Crustoidea, Cyclograptidae, Dendroidea, Diplograptoidea, Dithecodendrum, Dithecoidea, Graptoblastoides, Graptoblastus, Graptolithus, Graptoloida, Haplograptus, Leveillites, Marsipograptus, Pilograptus, Pseudophyllograptus, Rhabdopleurida, Rhapdopleura, Siberiodendrum, Siberiograptus, Siryngotaenia, Stolonoidea, Trigonograptus, Tuboidea

Subtaxa: Palmatophycus contractus

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Type: Palmatophycus contractus

Ecology: passively mobile planktonic suspension feeder