I. Panarthropoda |
Phylogenetic considerations of Panarthropoda
Phylum Tardigrada. External and internal morphology.
Phylum Onychophora. External and internal morphology. |
III. Phylum Chordata |
Exclusive characteristics
Subphylum Cefalochordata
Subphylum Urochordata
Subphylum Vertebrata |
IV. Phylum Chordata: Craneata |
Subphylum Vertebrata (Tetrapod Vertebrates)
Class Amphybia
Class non Avian Reptiles
Class Aves
Class Mammals |