Archive | Vertebrata

Structure of Different Vertebrata | Zoology

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 otic. 4. Foramina for cranial [...]

By |2016-08-24T10:06:29+00:00August 24, 2016|Vertebrata|Comments Off on Structure of Different Vertebrata | Zoology
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Structure of Different Vertebrae | Zoology

In this article we will discuss about the structure of different vertebrae. I. Procoelous: A. Bufo sp. (Toad), Rana sp. (Frog): 1. Hypapophysis and chevron bone absent. 2. Neural spine: A median elevation (Bufo); backwardly directed (Rana). 3. Atlas: Prezygapophyses absent. 4. Typical vertebra: Postzygapophysis present. B. Calotes sp. (Lizard): 1. Presence of hypapophysis in cervical and chevron bone in [...]

By |2016-08-24T10:06:26+00:00August 24, 2016|Vertebrata|Comments Off on Structure of Different Vertebrae | Zoology
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