'Class myxini' diaporamas de présentation

Fishes

846 views • 80 slides

Fishes

Fishes. Bio II Rupp. Types of Fishes. Jawless Cartilaginous Bony. Fish Characteristics. 4 hallmarks of chordates Sharks Lateral line Ampullae of Lorenzini Operculum. Gills Tail types Scale types Fish musculature Swimming and the swim bladder. Taxonomy. Kingdom Animalia

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Fishes

Fishes. Chapter 39. Introduction to Vertebrates. Section 39.1. Vertebrate Characteristics. Only 1 phylum: Chordata Three distinguishing characteristics : Vertebrae : bones or cartilage that surrounds and protects dorsal nerve cord (spine) Cranium : skull that protects the brain

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Fish Taxonomy

Fish Taxonomy. KINGDOM ANIMALIA PHYLUM CHORDATA SUPERCLASS AGNATHA Class Myxini (1 order) Class Cephalaspidomorphi (1 order) SUPERCLASS GNATHOSTOMATA Class Chondrichthyes (10 orders) Class Sarcopterygii (3 orders) Class Actinopterygii (4 orders)

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phylum Chordata

phylum Chordata. around AT LEAST since Cambrian 2 cm long, no appendages or eyes for 200 my restricted to ocean, ~360 mya evolved appendages, moved to land ~60,000 (?) extant species 5500 spp. mammals (and 1/5 th of those = bats) although numbers not impressive, size is:

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Wakefield 2011-2012

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