I want to know the answer to the following question:
In what year did Tufts researchers reportedly uncover what is believed to be the oldest known impression of a flying insect?
All the background I'm provided with is that "This species already possessed dicondylic mandibles (two articulations in the mandible), a feature associated with winged insects, suggesting that wings may already have evolved at this time.". Is that enough to answer the question?
Answer: no