Tag Archive for 'Petrified Forest National Park'

An artist’s reconstruction of Sonselasuchus cedrus in its environment in what is now Petrified Forest National Park, 215 million years ago. Image credit: Gabriel Ugueto.

Triassic Crocodile Relative May Have Learned to Walk on Two Legs

Mar 9, 2026 by Enrico de Lazaro

Fossils from the Chinle Formation of Petrified Forest National Park in Arizona, the United States, reveal that Sonselasuchus cedrus, a species of shuvosaurid...

An artist’s reconstruction of Eotephradactylus mcintireae, other animals, and plants found preserved in a remote bonebed in Petrified Forest National Park in Arizona, the United States. Image credit: Brian Engh.

Unusual Bonebed in Arizona Reveals North America’s Earliest-Known Pterosaur

Jul 8, 2025 by News Staff

Paleontologists have unearthed the fossilized jawbone of a new pterosaur species alongside hundreds of other fossils — including one of the world’s...

Life reconstruction of Funcusvermis gilmorei. Image credit: Andrey Atuchin / U.S. National Park Service / Petrified Forest Museum Association.

220-Million-Year-Old Fossils Identified as Oldest Known Caecilian

Jan 26, 2023 by Enrico de Lazaro

Funcusvermis gilmorei lived in the tropical forests of what is now Arizona, the United States, during the Triassic period, approximately 220 million years...

An artist’s impression of Kataigidodon venetus. Image credit: Ben Kligman / Hannah R. Kligman.

New Cynodont Species Unearthed in Arizona

Nov 5, 2020 by News Staff

Paleontologists have uncovered a previously unknown species of cynodont that lived during the Triassic period in what is now Arizona, the United States. An...