Complex sentence: Graduate student, Ryan Carney, and colleagues, in 2011, produced the first colour study on an Archaeopteryx specimen, only to find melanosomes that suggested a primarily black colouration of the feathers of the specimen.
Split into simpler sentences: Graduate student, Ryan Carney, and colleagues, in 2011, produced the first colour study on an Archaeopteryx specimen. Only to find melanosomes that suggested a primarily black colouration of the feathers of the specimen.