Taylor Jordan. Vertebrate Classes Agnatha Chondrichthyes Osteichthyes Amphibia Reptilia Mammalia.

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CHORDATA Taylor Jordan

description

Agnatha Oldest class of vertebrates Jawless Ex: Lamprey

Transcript of Taylor Jordan. Vertebrate Classes Agnatha Chondrichthyes Osteichthyes Amphibia Reptilia Mammalia.

Page 1: Taylor Jordan. Vertebrate Classes Agnatha Chondrichthyes Osteichthyes Amphibia Reptilia Mammalia.

CHORDATATaylor Jordan

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Vertebrate ClassesAgnathaChondrichthyesOsteichthyesAmphibiaReptiliaMammalia

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AgnathaOldest class of vertebratesJawless

Ex: Lamprey

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ChondrichthyesHave skeletons made of cartilage

Ex: Sharks

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OsteichthyesSkeletons made of boneMost diverse group of vertebrates

Ex: Ray-Finned Fish

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ReptiliaLive exclusively on landProduce eggs that do not need to develop in

water

Ex: Lizards

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AvesFeathersHollow bones

Ex: Blue Jay

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MammaliaHairMammary glandsThree middle ear bones

Ex: Raccoon

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Three GroupsVertebratesTunicatesLancelets

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Overview/CharacteristicsAll have tails, pharyngeal slits, hollow nerve

cords, and notochords at some point in life or development.

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VertebratesLarge ActiveWell developed brains in hard skullSegemented backbone

Ex: Humans

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TunicatesUrochordatesFree swimming/sessile

Ex: Sea Squirts

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LanceletsCephalochordatesSmallEel-likeFound in shallow tropical oceans

Ex:Lancelet