Fossils of the ancient frog Notobatrachus degiustoi push the known tadpole timeline back more than 30 million years.

The discovery in Patagonia shows that frogs have had a tadpole stage for at least 160 million years. Here’s how the ancient frogs compare to those of today.

An ancient tadpole fossil, the oldest ever found. Credit: Tnarg 12345 / CC BY-SA 3.0 A team of scientists has discovered a fossilized tadpole from the Jurassic era, revealing that some ancient ...

The Notobatrachus tadpole, however, was the same length as one of the adult frogs. “That feature is really, really hard to find in nature today,” Dr. Chuliver said. “Such a big size was ...

The tadpole was about 6 inches (16 centimeters) long — like a baseball with a 3-inch-long (7.6 cm) tail. The adult frog is just as big, which surprised the researchers. "Both [juvenile and adult ...

Perhaps the most surprising revelation of this study is just how big the Jurassic tadpole was. Although it’s not larger than today’s largest tadpoles, it’s still large enough to be ...

At more than 160 million years old, a recently discovered amphibian fossil has set a new record for the earliest known ...

From reproductive rights to climate change to Big Tech, The Independent is on the ... Scientists have discovered the oldest-known fossil of a giant tadpole that wriggled around over 160 million ...

The size of the specimen was also helpful for identifying the species, she added. The tadpole was about 6 inches (16 centimeters) long — like a baseball with a 3-inch-long (7.6 cm) tail. The adult ...