Amniotes are thought to have diverged from amphibians at the dawn of the Carboniferous period, about 355 million years ago. Mammals would diverge from reptiles and birds only 30 million years later.

Our new discovery, published today in Nature, details ancient fossil footprints found in Australia that upend the early ...

Tracks found in early Carboniferous-period rocks in southeast Australia appear to be from an amniote, most likely a reptile. If so, these beat the previous oldest evidence for amniotes by more than 30 ...

The latest findings suggest that amniotes also existed in the early Carboniferous period, around 355 million years ago.

Fossil records of crown-group amniotes – the group that includes mammals, birds and reptiles – begin in the Late Carboniferous period (about 318 million years old), while previously the ...

During the 60 million-year-long Carboniferous period on Earth vast carbon beds were laid down from the burial of ancient forests in marshy swamps.

The latest findings suggest that amniotes also existed in the early Carboniferous period, around 355 million years ago.