chordate

Examples:

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Lucy

incomplete skeleton of female found in eastern Ethiopia in 1974

Sir Barton

thoroughbred that won the triple crown in 1919

Gallant Fox

thoroughbred that won the triple crown in 1930

Omaha

thoroughbred that won the triple crown in 1935

War Admiral

thoroughbred that won the triple crown in 1937

Whirlaway

thoroughbred that won the triple crown in 1941

Count Fleet

thoroughbred that won the triple crown in 1943

Assault

thoroughbred that won the triple crown in 1946

Citation

thoroughbred that won the triple crown in 1948

Secretariat

thoroughbred that won the triple crown in 1973

Seattle Slew

thoroughbred that won the triple crown in 1977

Affirmed

thoroughbred that won the triple crown in 1978

Types:

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cephalochordate

fish-like animals having a notochord rather than a true spinal column

tunicate, urochord, urochordate

primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva

craniate, vertebrate

animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium

fetus, foetus

an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal

amphioxus, lancelet

small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates

ascidian

minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves

salp, salpa

minute floating marine tunicate having a transparent body with an opening at each end

doliolum

free-swimming oceanic tunicate with a barrel-shaped transparent body

larvacean

any member of the class Larvacea

appendicularia

free-swimming tadpole-shaped pelagic tunicate resembling larvae of other tunicates

Amniota

higher vertebrates (reptiles, birds and mammals) possessing an amnion during development

amniote

any member of the Amniota

aquatic vertebrate

animal living wholly or chiefly in or on water

gnathostome

a vertebrate animal possessing true jaws

bird

warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings

amphibian

cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult form

reptile, reptilian

any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms

mammal, mammalian

any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk

tetrapod

a vertebrate animal having four feet or legs or leglike appendages

Type of:

animal, animate being, beast, brute, creature, fauna

a living organism characterized by voluntary movement