Related how?
Biota
(Life)
Eukaryote
(Eukarya)
Chromista
Harosa
Halvaria
Alveolate
(Alveolata)
Ciliophora
(Ciliates)
Spirotrichea
(Spirotrich)
Stichotrichida
Spirofilidae
Urostrongylum (
25361860
)
Children (3 direct children, 3 direct and indirect children):
Urostrongylum caudatum
Urostrongylum contortum
Urostrongylum lentum