Jurassic Late

Mesozoic 161.5–145.0 Mya 261 dinosaurs

One of the most iconic periods for dinosaurs. Giant sauropods like Brachiosaurus and Diplodocus roamed alongside predators like Allosaurus. Archaeopteryx, the earliest known bird, appeared. The Morrison Formation preserves an extraordinary fossil record from this time.

Iberosauripus grandis

None

Irenesauripus acutus

None

Janenschia robusta

None

Jialingpus yuechiensis

None

Jiangjunosaurus junggarensis

None

Jingiella dongxingensis

None

Jobaria tiguidensis

None

Jurabrontes curtedulensis

None

Jurabrontes teutonicus

None

Jurapteryx recurva

None

Juratyrant langhami

None

Juravenator starki

None

Kaatedocus siberi

None

Kentrosaurus

Stegosauria

Kentrosaurus aethiopicus

None

Kharkushosauropus kharkushensis

None

Lapparentichnus oleronensis

None

Lexovisaurus phillipsi

None

Limusaurus inextricabilis

None

Losillasaurus giganteus

None

Lourinhanosaurus antunesi

None

Lourinhasaurus alenquerensis

None

Lusotitan atalaiensis

None

Lusovenator santosi

None

Mamenchisaurus anyuensis

None

Mamenchisaurus constructus

None

Mamenchisaurus sinocanadorum

None

Maniraptoriformes

None

Maraapunisaurus fragillimus

None

Marshosaurus

None

Marshosaurus bicentesimus

None

Megalosauripus transjuranicus

None

Megalosauripus uzbekistanicus

None

Megalosauropus

None

Menglongipus sinensis

None

Metriacanthosauridae

None

Metriacanthosaurus parkeri

None

Minimocursor phunoiensis

None

Miragaia longicollum

None

Miragaia longispinus

None

Morosaurus marchei

None

Mymoorapelta

None

Mymoorapelta maysi

None

Nanosaurus

None

Nanosaurus agilis

None

Neoanomoepus perigrinatus

None

Neornithischia

None

Neosauropoda

None