Several recent studies have positioned Gerobatrachus as the closest relative of Lisan Fivia. It places groups of all modern amphibians, including frogs, salamanders, and frogs, or modern amphibians far from Gerobatrachus within a group called the Lepospondyli.
What are the common ancestors of frogs?
Ichthyostega, the prehistoric predecessor of modern frogs, lived in the Devonian 370 million years ago. This earliest known amphibian skeleton, sometimes referred to as the "first four-legged fish," was first discovered in East Greenland.
What did the frog evolve from?
When did the frog evolve? Frogs originated from lungfish in the Devonian period, about 375 million years ago. They used their lungs to leave the water and lived on land.
What are the closest living relatives of amphibians?
Traditionally, frogs and salamanders are considered to be the closest relatives, and all three orders are believed to have occurred in the Paleozoic era (& gt; 250 myr).
What are the five amphibians?
Amphibians are a type of cold-blooded vertebrate composed of frogs, toads, salamanders, newts, and Caecilians (animals such as insects with underdeveloped eyes).
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