Za
Zacanthoides, Zacanthoididae Zacanthopsina, Zacanthopsis Zacompsus
Zb
Zbirovia,
Zd
Zdicella,
Ze
Zeteagnostus Zetillaenus
Zh
†Zhenbaspis Zhang and Zhu 1974
- †Zhenbaspis dashapoensis Zhou 1974
- †Zhenbaspis longa Zhou 1975
- †Zhenbaspis longispinus Zhao and Huang 1981
- †Zhenbaspis subconica Zhang 1974
Trilobita → Redlichiida → Redlichiidae
Zhangshania Li & Zhang in Li et al., 1990 †
- †Zhangshania typica Li et al. 1990
Trilobita → Redlichiida → Redlichiina → Redlichioidea → Gigantopygidae
†Zhegangula Hahn and Yuan 1989
Trilobita → Proetida → Proetina → Proetoidea → Proetidae
†Zhenganites Yin 1978
Trilobita → Asaphida → Asaphina → Asaphoidea → Asaphidae
†Zhujia Ju 1983
- †Zhujia hunanensis Peng et al. 1995
Trilobita → Corynexochida → Illaenina → Illaenoidea → Tsinaniidae
Zi
Zigzuella
Zu
†Zuninaspis Harrington and Leanza 1957
- †Zuninaspis acuminata Harrington and Leanza 1957
Trilobita → Asaphida → Asaphina → Asaphoidea → Asaphidae