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Animals - Chordates
ancestral chordate
Bony appendages
Amniote eggs
Backbone
Tunicates Reptiles
(with birds) Lancelets
Jaws
Four limbs
Cartilaginous fishes
Ray-finned fishes
Lobe-finned fishes Mammals Amphibians
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vertebrates Tetrapods Amniotes Chordates
Jawless fishes
Bony skeleton
Learning Outcomes
Describe defining characteristics of chordates.
Describe defining characteristics of each group.
Name/Recognize common examples of each group.
Explain the differences between humans and other primates.
Vertebrates
ancestral chordate
Bony appendages
Amniote eggs
Backbone
Tunicates Reptiles
(with birds) Lancelets
Jaws
Four limbs
Cartilaginous fishes
Ray-finned fishes
Lobe-finned fishes Mammals Amphibians
1
2
3
4
5
6
vertebrates Tetrapods Amniotes Chordates
Jawless fishes
Bony skeleton
endoskeleton with vertebrae
Osteichthyes
liver intestine
ovary nerve cord
stomach anus gills
brain
heart
swim bladder kidney
skeleton is made of bone
Amniotes
Birds
Reptiles
Mammals Turtles Lizards, snakes Crocodilians
amniotes are no longer tied to water to reproduce in reptiles - development of young in an egg with a shell that prevents water loss in mammals - development of young internally in an amniotic sac (or egg in monotremes)
Primates
Tree shrewlike ancestor
Hominids Old World monkeys Lemurs Tarsiers
New World monkeys Gibbons Orangutans Gorillas Chimpanzees
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