Simplify the following text for a Grade 10 native English-speaking person.
Original: The discoverers ( archaeologist Mike Morwood and colleagues ) proposed that a variety of features , both primitive and derived , identify these individuals as belonging to a new species , H. floresiensis , within the taxonomic tribe of Hominini .
Simplified: Archaeologist Mike Morwood and colleagues who found the remains published research to say that they think the individuals belong to a new species , H. floresiensis , within the taxonomic tribe of Hominini .