found: ITIS, Aug. 12, 2005(Class Pogonophora -- beard worms. Phylum Annelida. Synonym: Vestimentifera)
found: Australian faunal directory - main checklist, via WWW, Aug. 12, 2005(Class Pogonophora (beard worms, tubeworms), Phylum Annelida)
found: Tree of life web project, Aug. 12, 2005:Annelida (The former phyla Pogonophora and Vestimentifera have also recently become regarded as a single, clearly annelid, group, and are now known by the original name, Siboglinidae)
found: Annelid resources, via WWW, Aug. 12, 2005(Pogonophorans, vestimentiferans, echiurans: Three former phyla, the first two, are nowadays regarded as belonging within the polychaetes. One as yet unrebutted classification places them both in their own family, Siboglinidae)
found: NCBI taxonomy browser, Aug. 12, 2005(Phylum Pogonophora (pogonophores), Annelida/Echiura/Pogonophora group. Includes classes Perviata and Vestimentifera (vestimentiferans))
