Look up a dinosaur

In 2011, T. A. Gates and colleagues published the name Acristavus. The name means “non-crested grandfather.”

It lived in the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Two Medicine Formation. It was a herbivore and could move on two or four legs.

The genus Adelolophus dates to 2014, the year T. A. Gates and colleagues described it. The name means “unknown crest.”

Fossils referred to Adelolophus date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Wahweap Formation. It was a herbivore and could move on two or four legs.

The genus Adynomosaurus dates to 2019, the year A. Prieto-Márquez and colleagues described it.

Fossils referred to Adynomosaurus 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 could move on two or four legs.

The genus Ahshislesaurus dates to 2025, the year S. G. Dalman and colleagues described it. The name means “salt, it is gray.”

Fossils referred to Ahshislesaurus date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Kirtland Formation. It was a herbivore and could move on two or four legs.

In 2021, N. R. Longrich and colleagues published the name Ajnabia.

Fossils referred to Ajnabia date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Morocco, including the Phosphates of the Oulad Abdoun Basin Formation. It was a herbivore and could move on two or four legs.

Altirhinus was formally named in 1998 by D. B. Norman. The name means “high nose.”

It lived in the Early Cretaceous (Albian), roughly 113.2 to 100.5 million years ago. Finds come from Mongolia, including the Khuren Dukh Formation. It was a herbivore and could move on two or four legs.

In 2023, R. S. Tykoski and colleagues published the name Ampelognathus. The name means “grapevine jaw.”

Fossils referred to Ampelognathus date to the Late Cretaceous (Cenomanian), roughly 100.5 to 93.9 million years ago. Finds come from the United States, including the Lewisville Formation. It was a herbivore and walked on two legs.

The genus Amurosaurus dates to 1991, the year Y. L. Bolotsky and S. M. Kurzanov described it. The name means “amur lizard.”

It lived in the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Russia, including the Udurchukan Formation. It was a herbivore and could move on two or four legs.

Anabisetia was formally named in 2002 by R. A. Coria and J. O. Calvo. The name honors a person tied to the fossil or its study.

It lived in the Late Cretaceous (Turonian), roughly 93.9 to 89.8 million years ago. Finds come from Argentina, including the Cerro Lisandro Formation. It was a herbivore and walked on two legs.

In 1993, A. P. Hunt and S. G. Lucas published the name Anasazisaurus. The name means “anasazi lizard.”

Fossils referred to Anasazisaurus date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Kirtland Formation. It was a herbivore and could move on two or four legs.

Angulomastacator was formally named in 2009 by J. R. Wagner and T. M. Lehman. The name means “bend chewer.”

It lived in the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Aguja Formation. It was a herbivore and could move on two or four legs.

In 2020, A. Prieto-Márquez and colleagues published the name Aquilarhinus. The name means “eagle snout.”

Fossils referred to Aquilarhinus date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Aguja Formation. It was a herbivore and could move on two or four legs.

In 1968, A. K. Rozhdestvensky published the name Aralosaurus. The name means “aral Sea lizard.”

Fossils referred to Aralosaurus date to the Late Cretaceous (Santonian · Campanian), roughly 85.7 to 72.2 million years ago. Finds come from Kazakhstan, including the Bostobe Formation. It was a herbivore and could move on two or four legs.

In 2009, X. Pereda-Suberbiola and colleagues published the name Arenysaurus. The name honors a person tied to the fossil or its study.

Fossils referred to Arenysaurus date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Spain. It was a herbivore and could move on two or four legs.

The genus Arstanosaurus dates to 1982, the year P. V. Shilin and Y. V. Suslov described it. The name means “arstan lizard.”

It lived in the Late Cretaceous (Santonian · Campanian), roughly 85.7 to 72.2 million years ago. Finds come from Kazakhstan, including the Bostobe Formation. It was a herbivore and walked on two legs.

Atlascopcosaurus was formally named in 1989 by T. H. Rich and P. Vickers-Rich. The name honors a person tied to the fossil or its study.

Fossils referred to Atlascopcosaurus date to the Early Cretaceous (Barremian · Aptian · Albian), roughly 125.8 to 100.5 million years ago. Finds come from Australia, including the Eumeralla Formation. It was a herbivore and walked on two legs.

Augustynolophus was formally named in 2015 by A. Prieto-Márquez and colleagues. The name honors a person tied to the fossil or its study.

Fossils referred to Augustynolophus date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from the United States, including the Moreno Formation. It was a herbivore and could move on two or four legs.

The genus Bactrosaurus dates to 1933, the year C. W. Gilmore described it. The name means “club lizard.”

Fossils referred to Bactrosaurus date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from China, including the Iren Dabasu Formation. It was a herbivore and could move on two or four legs.

In 2010, D. B. Norman published the name Barilium.

It lived in the Early Cretaceous (Valanginian), roughly 137.1 to 132.6 million years ago. Finds come from the United Kingdom, including the Wadhurst Clay Formation. It was a herbivore and could move on two or four legs.

The genus Barsboldia dates to 1981, the year T. Maryańska and H. Osmólska described it. The name means “of Barsbold.”

It lived in the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Mongolia, including the Nemegt Formation. It was a herbivore and could move on two or four legs.

Batyrosaurus was formally named in 2012 by P. Godefroit and colleagues. The name means “hero warrior.”

Fossils referred to Batyrosaurus date to the Late Cretaceous (Santonian · Campanian), roughly 85.7 to 72.2 million years ago. Finds come from Kazakhstan, including the Bostobe Formation. It was a herbivore and walked on two legs.

Bayannurosaurus was formally named in 2018 by X. Xu and colleagues. The name honors a person tied to the fossil or its study.

Fossils referred to Bayannurosaurus date to the Early Cretaceous (Aptian), roughly 121.4 to 113.2 million years ago. Finds come from China, including the Bayin-Gobi Formation. It was a herbivore and walked on two legs.

Blasisaurus was formally named in 2010 by P. Cruzado-Caballero and colleagues. The name honors a person tied to the fossil or its study.

Fossils referred to Blasisaurus date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Spain, including the Arén Sandstone Formation. It was a herbivore and could move on two or four legs.

In 2010, W. H. Wu and colleagues published the name Bolong.

It lived in the Early Cretaceous (Barremian), roughly 125.8 to 121.4 million years ago. Finds come from China, including the Yixian Formation. It was a herbivore and could move on two or four legs.