*The fossil, which was discovered in China, belonged to a small, bird-like dinosaur called Anchiornis huxleyi. It lived around 160 million years ago during the Late Jurassic period.*

The fossil is significant because it provides the first direct evidence of a dinosaur having a diaphragm.

* Previously, it was thought that only mammals had diaphragms, which are muscles that separate the chest cavity from the abdominal cavity and help to breathe.*

The finding suggests that the diaphragm may have evolved earlier than previously thought, and that it may have played a role in the evolution of bird flight.

*Birds are the only living dinosaurs, and they all have diaphragms.*

The discovery of a diaphragm in Anchiornis huxleyi also provides new insights into the evolution of the respiratory system in dinosaurs.

*Previously, it was thought that dinosaurs had a simple respiratory system, similar to that of reptiles. However, the presence of a diaphragm suggests that dinosaurs may have had a more complex respiratory system, which would have allowed them to be more active than reptiles.*

The new fossil is an important contribution to our understanding of dinosaur evolution.

* It sheds light on the evolution of the respiratory system in dinosaurs, and provides evidence for the early evolution of the diaphragm.*