In this article we will discuss about the structure of different vertebrata. Skull: 1. Presence of cranium, sensory capsules, foramen magnum and jaws. Ready identification: Identification: Skull Bufo, Rana: Subphylum Vertebrata: 1. Cranium bony or cartilagenous and encloses a cavity. 2. Cranium constituted by three rings— occipital, parietal and frontal. 3. Sense capsules—olfactory, optic and […]