The oldest tadpole fossil ever has been found—and it’s a big one. The discovery in Patagonia shows that frogs have had a tadpole stage for at least 160 million years.

The oldest-known tadpole was discovered in Argentina and dates back 161 million years. The unusually large, well-preserved fossil predates the previous record holder by about 20 million years.

NEW YORK — Scientists have discovered the oldest-known fossil of a giant tadpole that wriggled around over 160 million years ago. The new fossil, found in Argentina, surpasses the previous ...

A fossil of the world's oldest tadpole, which coexisted with dinosaurs in the Middle Jurassic about 165 million years ago, is pictured next to a 3D-printed representation of the tadpole and of a ...

NEW YORK (AP) - Scientists have discovered the oldest-known fossil of a giant tadpole that wriggled around over 160 million years ago. The new fossil, found in Argentina, ...

The new fossil, found in Argentina, surpasses the previous ancient record holder by about 20 million years. Imprinted in a slab of sandstone are parts of the tadpole's skull and backbone, along ...

NEW YORK (AP) — Scientists have discovered the oldest-known fossil of a giant tadpole that wriggled around over 160 million years ago.. The new fossil, found in Argentina, surpasses the previous ...

Scientists Unearth the Oldest Tadpole Fossil Ever Found, and It’s a 161-Million-Year-Old ‘Giant’ Found in a rock in Argentina, the six-inch-long tadpole sheds light on the history of frog ...

Scientists have discovered the fossil remains of the world's oldest tadpole. It was found in the South American country of Argentina and dates back around 160 million years ago, to the Jurassic ...