The taxonomic affiliation of Hexacontium pachydermum Jørgensen, specifically whether it belongs to the order Spumellarida or the order Entactinarida, is a subject of ongoing debate. In this study, we sequenced the 18S rRNA gene of H. pachydermum and of

The radiolarian group Spumellaria compose a diverse assemblage of marine microzooplankton with widespread geographic and vertical distributions. Spumellarians are useful paleoceanographic indicators, because their siliceous shells are preserved in the

The taxonomic affiliation of Hexacontium pachydermum Jørgensen, specifically whether it belongs to the order Spumellarida or the order Entactinarida, is a subject of ongoing debate. In this study, we sequenced the 18S rRNA gene of H. pachydermum and of

The taxonomic affiliation of Hexacontium pachydermum Jørgensen, specifically whether it belongs to the order Spumellarida or the order Entactinarida, is a subject of ongoing debate. In this study, we sequenced the 18S rRNA gene of H. pachydermum and of