Look up a dinosaur

Adratiklit was formally named in 2020 by S. C. R. Maidment and colleagues. The name means “mountain lizard.”

It lived in the Middle Jurassic (Bathonian · Callovian), roughly 168.2 to 161.5 million years ago. Finds come from Morocco, including the El Mers III Formation. It was a herbivore and walked on four legs.

In 2016, P. M. Galton and K. Carpenter published the name Alcovasaurus. The name honors a person tied to the fossil or its study.

It lived in the Late Jurassic (Kimmeridgian · Tithonian), roughly 154.8 to 143.1 million years ago. Finds come from the United States, including the Morrison Formation. It was a herbivore and walked on four legs.

Amargastegos was formally named in 2014 by R. E. Ulansky.

Fossils referred to Amargastegos date to the Early Cretaceous (Barremian), roughly 125.8 to 121.4 million years ago. Finds come from Argentina, including the La Amarga Formation. It was a herbivore and walked on four legs.

Baiyinosaurus was formally named in 2024 by L. Ning and colleagues. The name means “baiyin reptile.”

Fossils referred to Baiyinosaurus date to the Middle Jurassic (Bathonian), roughly 168.2 to 165.3 million years ago. Finds come from China, including the Wangjiashan Formation. It was a herbivore and walked on four legs.

The genus Bashanosaurus dates to 2021, the year D. Hui and colleagues described it. The name means “bashan lizard.”

It lived in the Middle Jurassic · Late Jurassic (Bajocian–Oxfordian), roughly 170.9 to 154.8 million years ago. Finds come from China, including the Shaximiao Formation. It was a herbivore and walked on four legs.

Chialingosaurus was formally named in 1959 by C. C. Young. The name means “chialing lizard.”

It lived in the Middle Jurassic · Late Jurassic (Bajocian–Oxfordian), roughly 170.9 to 154.8 million years ago. Finds come from China, including the Shaximiao Formation. It was a herbivore and walked on four legs.

In 1983, Z. Dong and colleagues published the name Chungkingosaurus. The name means “chongqing lizard.”

Fossils referred to Chungkingosaurus date to the Middle Jurassic · Late Jurassic (Bajocian–Oxfordian), roughly 170.9 to 154.8 million years ago. Finds come from China, including the Shaximiao Formation. It was a herbivore and walked on four legs.

Craterosaurus was formally named in 1874 by H. G. Seeley. The name means “bowl reptile.”

It lived in the Early Cretaceous (Berriasian · Valanginian · Hauterivian), roughly 143.1 to 125.8 million years ago. Finds come from the United Kingdom, including the Woburn Sands Formation. It was a herbivore and walked on four legs.

In 1902, F. A. Lucas published the name Dacentrurus. The name means “tail full of points.”

Fossils referred to Dacentrurus date to the Late Jurassic (Kimmeridgian · Tithonian), roughly 154.8 to 143.1 million years ago. Finds come from the United Kingdom, including the Kimmeridge Clay Formation. It was a herbivore and walked on four legs.

The genus Gigantspinosaurus dates to 1992, the year H. Ouyang described it. The name means “giant-spined lizard.”

Fossils referred to Gigantspinosaurus date to the Middle Jurassic · Late Jurassic (Bajocian–Oxfordian), roughly 170.9 to 154.8 million years ago. Finds come from China, including the Shaximiao Formation. It was a herbivore and walked on four legs.

Hesperosaurus was formally named in 2001 by K. Carpenter and colleagues.

It lived in the Late Jurassic · Early Cretaceous (Oxfordian–Berriasian), roughly 161.5 to 137.1 million years ago. Finds come from the United States, including the Morrison Formation. It was a herbivore and walked on four legs.

In 1982, Z. Dong and colleagues published the name Huayangosaurus. The name means “huayang lizard.”

It lived in the Middle Jurassic · Late Jurassic (Bajocian–Oxfordian), roughly 170.9 to 154.8 million years ago. Finds come from China, including the Shaximiao Formation. It was a herbivore and walked on four legs.

The genus Hypsirhophus dates to 1878, the year E. D. Cope described it. The name means “high roof.”

Fossils referred to Hypsirhophus date to the Late Jurassic · Early Cretaceous (Oxfordian–Berriasian), roughly 161.5 to 137.1 million years ago. Finds come from the United States, including the Morrison Formation. It was a herbivore and walked on four legs.

In 2017, L. Salgado and colleagues published the name Isaberrysaura. The name honors a person tied to the fossil or its study.

It lived in the Middle Jurassic (Bajocian), roughly 170.9 to 168.2 million years ago. Finds come from Argentina, including the Los Molles Formation. It was a herbivore and walked on four legs.

In 2007, C. Jia and colleagues published the name Jiangjunosaurus. The name honors a person tied to the fossil or its study.

Fossils referred to Jiangjunosaurus date to the Middle Jurassic · Late Jurassic (Callovian · Oxfordian), roughly 165.3 to 154.8 million years ago. Finds come from China, including the Shishugou Formation. It was a herbivore and walked on four legs.

The genus Kentrosaurus dates to 1915, the year E. Hennig described it. The name means “prickle lizard.”

Fossils referred to Kentrosaurus date to the Late Jurassic (Kimmeridgian · Tithonian), roughly 154.8 to 143.1 million years ago. Finds come from Tanzania, including the Tendaguru Formation. It was a herbivore and walked on four legs.

Lexovisaurus was formally named in 1957 by R. Hoffstetter.

Fossils referred to Lexovisaurus date to the Middle Jurassic (Callovian), roughly 165.3 to 161.5 million years ago. Finds come from the United Kingdom, including the Oxford Clay Formation. It was a herbivore and walked on four legs.

Loricatosaurus was formally named in 2008 by S. C. R. Maidment and colleagues. The name means “armored lizard.”

Fossils referred to Loricatosaurus date to the Middle Jurassic (Callovian), roughly 165.3 to 161.5 million years ago. Finds come from the United Kingdom, including the Oxford Clay Formation. It was a herbivore and walked on four legs.

Miragaia was formally named in 2009 by O. Mateus and colleagues. The name honors a person tied to the fossil or its study.

It lived in the Late Jurassic (Kimmeridgian · Tithonian), roughly 154.8 to 143.1 million years ago. Finds come from Portugal, including the Lourinhã Formation. It was a herbivore and walked on four legs.

The genus Mongolostegus dates to 2018, the year T. A. Tumanova and V. R. Alifanov described it. The name means “mongolian roof.”

Fossils referred to Mongolostegus date to the Early Cretaceous (Aptian · Albian), roughly 121.4 to 100.5 million years ago. Finds come from Mongolia, including the Zuunbayan Formation. It was a herbivore and walked on four legs.

The genus Monkonosaurus dates to 1990, the year Z. Dong described it. The name honors a person tied to the fossil or its study.

Fossils referred to Monkonosaurus date to the Late Jurassic · Early Cretaceous (Kimmeridgian–Hauterivian), roughly 154.8 to 125.8 million years ago. Finds come from China, including the Loe-ein Formation. It was a herbivore and walked on four legs.

In 1929, B. F. Nopcsa published the name Paranthodon. The name means “near Anthodon.”

Fossils referred to Paranthodon date to the Early Cretaceous (Berriasian · Valanginian), roughly 143.1 to 132.6 million years ago. Finds come from South Africa, including the Kirkwood Formation. It was a herbivore and walked on four legs.

Stegosaurus was formally named in 1877 by O. C. Marsh. The name means “roof lizard.”

It lived in the Late Jurassic (Kimmeridgian · Tithonian), roughly 154.8 to 143.1 million years ago. Finds come from the United States, including the Morrison Formation. It was a herbivore and walked on four legs.

In 2024, O. Zafaty and colleagues published the name Thyreosaurus.

Fossils referred to Thyreosaurus date to the Middle Jurassic (Bathonian · Callovian), roughly 168.2 to 161.5 million years ago. Finds come from Morocco, including the El Mers III Formation. It was a herbivore and walked on four legs.