CHORDATATaylor Jordan

Vertebrate ClassesAgnathaChondrichthyesOsteichthyesAmphibiaReptiliaMammalia

AgnathaOldest class of vertebratesJawless

Ex: Lamprey

ChondrichthyesHave skeletons made of cartilage

Ex: Sharks

OsteichthyesSkeletons made of boneMost diverse group of vertebrates

Ex: Ray-Finned Fish

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

water

Ex: Lizards

AvesFeathersHollow bones

Ex: Blue Jay

MammaliaHairMammary glandsThree middle ear bones

Ex: Raccoon

Three GroupsVertebratesTunicatesLancelets

Overview/CharacteristicsAll have tails, pharyngeal slits, hollow nerve

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

VertebratesLarge ActiveWell developed brains in hard skullSegemented backbone

Ex: Humans

TunicatesUrochordatesFree swimming/sessile

Ex: Sea Squirts

LanceletsCephalochordatesSmallEel-likeFound in shallow tropical oceans

Ex:Lancelet