Plankton tows and surface sediments from the Japan Sea, a marginal sea of the northwestern Pacific, were examined to study the depth distribution of modern radiolarians. The depth distribution patterns between the living assemblage in the water-column

Geographic and vertical distribution patterns of living Radiolaria are closely related to the characters of the water column. We studied living Radiolaria in samples collected at closely spaced depth intervals in the waters surrounding Japan in order

We analyzed the genetic structure of the radiolarian morphospecies Larcopyle buetschlii from the surface to deep waters (up to 2000 m) in the Japan Sea using the internal transcribed spacer (ITS) regions of ribosomal RNA genes. Each individual had several

One of the large taxonomic assemblages in eukaryotes, Rhizaria, includes Filosa, Endomyxa, Foraminifera and Radiolaria based on phylogenetic analyses. However, the evolutionary interrelationships within these rhizarian members have not been resolved mainly

Polycystines (spumellarians, nassellarians, and collodarians), phaeodarians, and acantharians are marine planktonic protists that have been conventionally and collectively called “radiolaria”. Recent molecular phylogenetic studies revealed radiolarian