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
Top Related