Genus:
Atractosoma >
Subfamily:
Atractosomatinae >
Family:
Craspedosomatidae >
Superfamily:
Craspedosomatoidea >
Suborder:
Craspedosomatidea >
Order:
Chordeumatida >
Superorder:
Nematophora >
Subterclass:
Eugnatha >
Infraclass:
Helminthomorpha >
Subclass:
Chilognatha >
Class:
Diplopoda >
Phylum:
Arthropoda >
Kingdom:
Animalia >
Unranked:
Biota >