Siboglinid, or pogonophoran, annelids are tubicolous worms that rely on chemoautotrophic
endosymbionts for nutrition. Three clades within the siboglinids are recognized: Frenulata …

We present parsimony analyses of annelids based on the largest taxon sample and most
extensive molecular data set yet assembled, with two nuclear ribosomal genes (18S rDNA …

Background Annelida is one of the major protostome phyla, whose deep phylogeny is very
poorly understood. Recent molecular phylogenies show that Annelida may include groups …

Annelida, one of the most successful animal phyla, exhibits an amazing variety of
morphological forms. Disparity between some of the forms is so great that until molecular …

Terebelliformia—“spaghetti worms” and their allies—are speciose and ubiquitous marine
annelids but our understanding of how their morphological and ecological diversity evolved …

Background For phylogenetic reconstructions, conflict in signal is a potential problem for tree
reconstruction. For instance, molecular data from different cellular components, such as the …

Since its description from the Galapagos Rift in the mid-1980s, Archinome rosacea has been
recorded at hydrothermal vents in the Pacific, Atlantic and Indian Oceans. Only recently was …

We assess the phylogenetic position of Siboglinidae (previously known as the phyla
Pogonophora and Vestimentifera, but now referred to Annelida) in parsimony analyses of …

Amphisamytha has five currently recognized species. One of these, A. galapagensis has
been reported from numerous hydrothermal vents and methane seeps across the Pacific …

A comprehensive phylogenetic analysis of the Terebellidae and related families was
undertaken. Type material of all genera of Terebellinae was examined, together with …