Yes, just like you read it. Scientists have discovered an ancient and vestigial lung in the rare coelacanth fish that fills the gaps of lineage in the fish as what it may have looked like a million years ago.

All mammals evolved over the millennia from some ancestral lobe-finned fish, some of them actually exists until now, and one of them is the coelacanth

Using x-ray tomography, the researchers were able to scan coelacanth of differing age groups and found that early embryonic stages featured a large and potentially functional lung.