|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Palaeoscolecida - Cricocosmida - Cricocosmiidae
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|J. Han et al. 2007||Eversible proboscis with ten longitudinal rows
of scalids; trunk with paired macrosclerites that composed of
many tubercles on the outer surface and corresponding pits in
the inner surface