Triassic

Crocodylians are surviving members of a 230-million-year lineage called crocodylomorphs, a group that includes living crocodylians (i.e. crocodiles, alligators and gharials) and their many extinct relatives.

The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is providing scientists important clues about these creatures' lives.

An ichthyosaur was pregnant with twins when she died, a fossil from Cretaceous Chile reveals.

'It probably spent most, if not all, of its life in the water eating… anything unfortunate enough to venture too far into the water.'

The End-Permian mass extinction killed an estimated 80% of life on Earth, but new research suggests that plants might have done okay.

Bulbous temnospondyls looked like a cross between a crocodile and a salamander.

Primitive amphibians called temnospondyls survived the aftermath of the end-Permian mass extinction, which occurred about 252 million years ago, by feeding on freshwater prey that evaded terrestrial predators, according to a new study from the University of Bristol.

Tropical riparian ecosystems in what is now North China recovered within as little as 2 million years after the end-Permian extinction, one of the most devastating bio-crises in the history of life, destroying both marine and terrestrial ecosystems.

His effort to limit birthright citizenship was called "blatantly unconstitutional" by the federal judge.

It seems likely the justices are going to punt on this one.

Learn more about some of the most unique dinosaurs, prehistoric reptiles, and flying reptiles discovered in 2024.

This year, the animal kingdom was filled with triumph, loss and new discoveries. Here is a look at NPR's top animal stories of 2024.

Paleontologists from Sweden and Poland have examined hundreds of fossilized samples of feces and vomit from the Polish Basin in central Europe to reconstruct the rise of the dinosaurs to become the dominant players in Earth's ancient ecosystems.

Hundreds of imprints of plants, animals, even raindrops discovered in northern Italian Alps

The symbiotic relationship between corals and their photosynthetic algal partners (photosymbionts) goes back at least to the Devonian (385 million years ago), according to new research.

From evading predators to withstanding natural disasters, animals have been using burrows for over 500 million years.

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Meet Fasolasuchus, a colossal Triassic predator that ruled before dinosaurs. Paleontologists uncover details about its fascinating lineage and unique evolutionary traits.

Researchers say they've recovered one of the world's oldest known dinosaurs after heavy rains exposed a Herrerasaurid skeleton in southern Brazil.

A team of Brazilian scientists has discovered the fossilized skeleton of what they believe is one of the world's oldest dinosaurs