Pseudoolenoides

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: †Trilobitomorpha
Classis: †Trilobita
Ordo: †Proetida
Subordo: †Proetina
Superfamilia: Bathyuroidea

Familia: Bathyuridae
Genus: Pseudoolenoides
Species: P. acicaudus – P. aspinosus – P. carterensis – P. derbyi – P. dilectus – P. fossilmountainensis – P. ludificatus – P. oilcreekensis – P. pogonipensis
References

Adrain, J.M.; McAdams, N.E.B.; Karim, T.S. 2012: The Middle Ordovician bathyurid trilobite Pseudoolenoides, with a revised trilobite biostratigraphy of the Dapingian and lower Darriwilian of western Laurentia. Zootaxa 3467: 1–97. Preview Reference page.