What evidence provided the resolution to the long-standing classification puzzle of *Macrauchenia*?

Answer

Application of molecular biology to ancient remains

The turning point in understanding *Macrauchenia* came with the successful extraction and analysis of ancient DNA, providing genetic evidence that superseded purely skeletal comparisons.

What evidence provided the resolution to the long-standing classification puzzle of *Macrauchenia*?
animalextinctmammalmacraucheniarelative