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24. Fishes
This document summarizes the diversity of early vertebrates and fishes. It discusses fossils of early vertebrates like placoderms, acanthodians, and cartilaginous fishes. It also describes the two classes of jawless fishes, hagfish and lampreys. The document then covers derived characters of jawed vertebrates, fossil gnathostomes, and the subclasses of cartilaginous fishes. It provides an overview of bony fishes, including ray-finned and lobe-finned classes. Additional topics discussed include locomotion, buoyancy, respiration, feeding behaviors, migration, reproduction, and growth patterns in fishes.
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24. Fishes
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- 4. Fossils of EarlyVertebrates
- 5. Fossils of EarlyVertebrates Placoderms
- 6. Fossils of EarlyVertebrates Acanthodians
- 7. Fossils of EarlyVertebrates cartilaginous fishes : Class Chondrichthyes
- 8. Fossils of EarlyVertebrates bony fishes ray & lobe
- 9. Agnathans class Myxini, the hagfishes class Petromyzontida , the lampreys .
- 10. Class Myxini -Hagfish
- 11. Class Myxini -Hagfish
- 12. Class Myxini -Hagfish
- 13. Class Petromyzontida - Lampreys
- 14. Class Petromyzontida - Lampreys
- 15. Class Petromyzontida - Lampreys
- 16. Class Petromyzontida - Lampreys
- 17. Derived Characters ofGnathostomes
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- 24. Subclass Elasmobranchii– Acute Senses
- 25. Subclass Elasmobranchii “mermaid’s purse”
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- 33. Class Actinopterygii Twomain groups of ray-finned fishes. Chondrosteans
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- 47. Buoyancy: Physostomous fishes 1 st method
- 48. Buoyancy: Physoclistous fishes 2 nd Method
- 49. Hearing: Weberianossicles
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- 59. Growth French Angelfishes( Pomacanthus paru ) juvenile (left) and adult (right).
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Editor's Notes
- #2 “ Fish ” refers to one or more individuals of one species. “ Fishes ” refers to more than one species.