Parent taxon: Polychaeta according to J. J., Jr. Sepkoski 2002
Sister taxa: Aciculata, Aeolosomatidae, Amphinomorpha, Arachnostega, Bundenbachochaeta, Caprascolex, Drilomorpha, Ebetallites, Eopolychaetus, Eotrophonia, Eunicemorpha, Eunicida, Flabelligerimorpha, Geophilus proavus, Haileyia, Hammatopsis, Hesionites, Hirudopsis, Khemisina, Klakesia, Leodicidae, Lockportia, Maucheria, Microtubus, Miskoiida, Nawnites, Oliveirania, Onuphionella, Palaeotubus, Palpata, Parergodrilidae, Phragmochaetidae, Phyllodocemorpha, Pontobdellopsis, Potamodrilidae, Propolynoe, Psammodrilidae, Pyllodocida, Ramesses, Ruedemannella, Sarcionata, Schizoproboscina, Sedentarida, Serpulimorpha, Siboglinidae, Soris, Spiroglyphus, Stoma, Terebellomorpha, Tosalorbis, Tubicola, Tubulelloides, Tymbochoos
Subtaxa: Dodecaceria Sabellaria
Ecology: epifaunal detritivore
Distribution:
• Quaternary of United States (2: California collections)
• Cretaceous of Colombia (1)
Total: 3 collections each including a single occurrence