In this article we will discuss about Subphylum Vertebrate (Craniata):- 1. Introduction to Subphylum Vertebrate (Craniata) 2. Characters of Subphylum Vertebrata (Craniata) 3. Basic Features 4. Origin 5. Ancestry. Contents: Introduction to Subphylum Vertebrate (Craniata) Characters of Subphylum Vertebrata (Craniata) Basic Features of Subphylum Vertebrata (Craniata) Origin of Vertebrates Ancestry of Vertebrates 1. Introduction to […]
Subphylum Vertebrate (Craniata) | Phylum Chordata
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Jawless Vertebrates: Historical Resume and Classification
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In this article we will discuss about the historical resume and classification of jawless vertebrates. Historical Resume: L. Agassiz (1857) placed the agnaths under the class Myzontes and proposed the following scheme for the lampreys and hagfishes: Class I. Myzontes. Order 1. Myxinides and Order 2. Cyclostomi. E. S. Goodrich (1909) gave the following classification […]
Hagfish: Structure, Affinities, System and Other Details
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In this article we will discuss about Hagfish:- 1. Introduction to Hagfish 2. Habit and Habitat of Hagfish 3. External Structures 4. Digestive System 5. Respiratory System 6. Circulatory System 7. Nervous System 8. Excretory System 9. Reproductive System 10. Development 11. Affinities and Systematic Position. Contents: Introduction to Hagfish Habit and Habitat of Hagfish […]
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