Classification Data Table & Key
Use Figure 1 to complete the data table and then use the data table to help complete the classification key.
Classification Key for the Extinct Animals Shown in Figure 1
Observations
DATA TABLE
Warmblooded
Temperature
Regulation
Coldblooded
Hind legs
Fore legs
Appendages
Feathers
Body
covering
Smooth
skin
Name of
Animal
Breathing
Mechanism
1a Is warm-blooded ………………………………………
Go to 2
1b Is cold-blooded ………………………………………...
Go to 6
2a Has feathers ……………………………………………
Go to 3
2b Has hair or fur …………………………………………
Go to 4
____________________
Utah Lake
sculpin
Texas red wolf
5a Horns have many branches …………………………….
____________________
5b Horns have no branches ………………………………..
____________________
Passenger
pigeon
6a Breathes with gills ……………………………………...
Go to 7
Eastern elk
6b Breathes with lungs …………………………………….
Go to 8
7a Has large fan-shaped fins just behind the head ………...
____________________
7b Has small pectoral fins …………………………………
____________________
8a Has scaly skin ………………………………………….
Go to 9
Oregon bison
8b Has smooth skin ………………………………………..
____________________
New Zealand
grayling
9a Has front and back legs ………………………………..
____________________
9b Has no legs …………………………………………….
____________________
Round island
boa
Palestinian
painted frog
Lungs
4b Has no horns …………………………………………..
Gills
Go to 5
Hair
4a Has horns ………………………………………………
Domed tortoise
Dodo
Scales
____________________
Horns
3b Has wide, crooked beak ……………………………….
Wings
_____
Fins
3a Has narrow, straight beak …………………………….