Answer:
To classify an extinct species, the scientist might have to look for any kinds of clues he can look for in the fossil record. The scientist might look for the evolutionary traits and predict that the dinosaur has closest resemblance to which other types of dinosaurs. In this way, he can place the organisms with similar characteristics or features in the same group. Also, studying the time period in which the dinosaur may heave existed may also help to classify the dinosaur.
Classifying extinct species is difficult because one cannot determine the exact features pf the extinct species which help to predict the groups in which the organism is to be placed.
