Jaculinykus yaruui
Jainosaurus septentrionalis
Jakapil kaniukura
Jaklapallisaurus asymmetrica
Janenschia robusta
Jaxartosaurus aralensis
Jeholosaurus shangyuanensis
Jeyawati rugoculus
Jianchangosaurus yixianensis
Jiangjunosaurus junggarensis
Jiangshanosaurus lixianensis
Jiangxisaurus ganzhouensis
Jiangxititan ganzhouensis
Jianianhualong tengi
Jinbeisaurus wangi
Jinfengopteryx elegans
Jingiella dongxingensis
Jingshanosaurus xinwaensis
Jintasaurus meniskus
Jinyunpelta sinensis
Jinzhousaurus yangi
Jiutaisaurus xidiensis
Jobaria tiguidensis
Jubbulpuria tenuis
Judiceratops tigris
Juratyrant langhami
Juravenator starki
