What they found is structures that looked like cells under a microscope: https://academic.oup.com/view-large/figure/200008005/nwz206fig1.jpg https://academic.o

What they found is structures that looked like cells under a microscope: https://academic.oup.com/view-large/figure/200008005/nwz206fig1.jpg https://academic.oup.com/view-large/figure/200008005/nwz206f... Section C shows cell-like structures and D shows the hypothesised DNA-like structure. They compare with a modern Emu's microstructures in section G. They also applied a stain to the fossil and compared it to a stained emu bone here https://academic.oup.com/view-large/figure/200008014/nwz206fig2.jpg https://academic.oup.com/view-large/figure/200008014/nwz206f...