The tiger belongs to the phylum Chordata. This phylum includes animals that have a notochord, a dorsal nerve cord, and gill slits at some stage of their development. To break it down further, tigers are classified within the kingdom Animalia, which encompasses all animals, and they belong to the subphylum Vertebrata, indicating they have a backbone.
In addition to their classification in Chordata, tigers are part of the class Mammalia, which includes all mammals. This class is characterized by animals that have mammary glands and typically give live birth. Thus, the tiger is not just indicative of the specific characteristics of the species itself, but also of the broader evolutionary traits shared by all members of its phylum.