Look up a dinosaur

Abdarainurus was formally named in 2020 by A. O. Averianov and A. V. Lopatin. The name honors a person tied to the fossil or its study.

It lived in the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from Mongolia, including the Alagteeg Formation. It was a herbivore and walked on four legs.

In 2022, B. Vila and colleagues published the name Abditosaurus. The name means “forgotten lizard.”

Fossils referred to Abditosaurus date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Spain, including the Conques Formation. It was a herbivore and walked on four legs.

In 1989, H. Ouyang published the name Abrosaurus.

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 Abydosaurus dates to 2010, the year D. Chure and colleagues described it. The name means “abydos lizard.”

Fossils referred to Abydosaurus date to the Early Cretaceous (Albian), roughly 113.2 to 100.5 million years ago. Finds come from the United States, including the Cedar Mountain Formation. It was a herbivore and walked on four legs.

In 2006, R. M. Santucci and R. J. Bertini published the name Adamantisaurus. The name honors a person tied to the fossil or its study.

Fossils referred to Adamantisaurus date to the Late Cretaceous (Campanian · Maastrichtian), roughly 83.6 to 66 million years ago. Finds come from Brazil, including the Adamantina Formation. It was a herbivore and walked on four legs.

Aegyptosaurus was formally named in 1932 by E. Stromer.

Fossils referred to Aegyptosaurus date to the Late Cretaceous (Cenomanian), roughly 100.5 to 93.9 million years ago. Finds come from Egypt, including the Bahariya Formation. It was a herbivore and walked on four legs.

Aeolosaurus was formally named in 1987 by J. E. Powell. The name honors a person tied to the fossil or its study.

It lived in the Late Cretaceous (Campanian · Maastrichtian), roughly 83.6 to 66 million years ago. Finds come from Argentina, including the Angostura Colorada Formation. It was a herbivore and walked on four legs.

The genus Aepisaurus dates to 1852, the year P. Gervais described it. The name means “lofty lizard.”

Fossils referred to Aepisaurus date to the Early Cretaceous (Albian), roughly 113.2 to 100.5 million years ago. Finds come from France. It was a herbivore and walked on four legs.

The genus Agustinia dates to 1999, the year J. F. Bonaparte described it. The name honors a person tied to the fossil or its study.

It lived in the Early Cretaceous (Albian), roughly 113.2 to 100.5 million years ago. Finds come from Argentina, including the Lohan Cura Formation. It was a herbivore and walked on four legs.

The genus Alamosaurus dates to 1922, the year C. W. Gilmore described it. The name means “ojo Alamo lizard.”

It lived in the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from the United States, including the Ojo Alamo Formation. It was a herbivore and walked on four legs.

Algoasaurus was formally named in 1904 by R. Broom. The name honors a person tied to the fossil or its study.

It lived in 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.

Amanzia was formally named in 2020 by D. Schwarz and colleagues. The name honors a person tied to the fossil or its study.

It lived in the Late Jurassic (Kimmeridgian), roughly 154.8 to 149.2 million years ago. Finds come from Switzerland, including the Reuchenette Formation. It was a herbivore and walked on four legs.

Amargasaurus was formally named in 1991 by L. Salgado and J. F. Bonaparte. The name means “la Amarga lizard.”

Fossils referred to Amargasaurus 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.

In 2007, S. Apesteguía published the name Amargatitanis. The name means “amarga giant.”

It lived in 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.

The genus Amazonsaurus dates to 2003, the year I. D. S. Carvalho and colleagues described it. The name means “amazon lizard.”

It lived in the Early Cretaceous (Aptian · Albian), roughly 121.4 to 100.5 million years ago. Finds come from Brazil, including the Itapecuru Formation. It was a herbivore and walked on four legs.

The genus Ampelosaurus dates to 1995, the year J. Le Loeuff described it. The name means “vine lizard.”

It lived in the Late Cretaceous (Campanian · Maastrichtian), roughly 83.6 to 66 million years ago. Finds come from France, including the Marnes Rouges Inférieures Formation. It was a herbivore and walked on four legs.

Amphicoelias was formally named in 1877 by E. D. Cope. The name means “on both sides.”

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.

Amygdalodon was formally named in 1947 by A. Cabrera. The name means “almond tooth.”

It lived in the Early Jurassic (Pliensbachian · Toarcian), roughly 192.9 to 174.7 million years ago. Finds come from Argentina, including the Lonco Trapial Formation. It was a herbivore and walked on four legs.

Analong was formally named in 2020 by X. X. Ren and colleagues. The name honors a person tied to the fossil or its study.

Fossils referred to Analong date to the Middle Jurassic (Bajocian), roughly 170.9 to 168.2 million years ago. Finds come from China, including the Chuanjie Formation. It was a herbivore and walked on four legs.

In 1991, J. O. Calvo and J. F. Bonaparte published the name Andesaurus. The name means “andes lizard.”

It lived in the Late Cretaceous (Cenomanian), roughly 100.5 to 93.9 million years ago. Finds come from Argentina, including the Candeleros Formation. It was a herbivore and walked on four legs.

Angolatitan was formally named in 2011 by O. Mateus and colleagues. The name means “angolan giant.”

Fossils referred to Angolatitan date to the Late Cretaceous (Coniacian), roughly 89.8 to 85.7 million years ago. Finds come from AO, including the Itombe Formation. It was a herbivore and walked on four legs.

In 2020, X. X. Ren and colleagues published the name Anhuilong. The name means “anhui dragon.”

It lived in the Middle Jurassic (Aalenian–Callovian), roughly 174.7 to 161.5 million years ago. Finds come from China, including the Hongqin Formation. It was a herbivore and walked on four legs.

The genus Antarctosaurus dates to 1929, the year F. V. Huene described it. The name means “southern lizard.”

It lived in the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from Argentina, including the Anacleto Formation. It was a herbivore and walked on four legs.

In 1877, O. C. Marsh published the name Apatosaurus. The name means “deceptive lizard.”

Fossils referred to Apatosaurus date to 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.