Photo Credit: Brian Gratwicke, Flickr Classification and Taxonomy Refresher: Eastern Hellbender Domain : Eukaryota Kingdom : Animalia Phylum : Chordata Class : Amphibia Subclass: Lissamphibia Superorder: Caudata ** Order : Urodela Family : Cryptobranchidae Genus : Cryptobranchus Species : Cryptobranchus alleganiensis subspecies: C. alleganiensis alleganiensis ** This seems to be debated , but often Caudata and Urodela are used interchangeably. In this case, I've used Caudata to describe both the extinct and extant salamander populations. Eukaryota : Any cell or organism with a clearly defined nucleus within a nuclear membrane and other organelles contained within a cell membrane. Eukaryotic organisms have a larger cell size than prokaryotes ( Eukaryote | Definition, Structure, & Facts , 2024). Animalia : Organisms in the kingdom Animalia are multicellular and have eukaryotic cells and lack rigid cell walls. They are all heterotrophs (consume othe...