Classification Key for Extinct Vertebrate Animals Utah Lake Sculpin; Passenger Pigeon, Oregon Bison, Dodo, Eastern Elk, Texas Red Wolf, Domed Tortoise, Round Island Boa, Palestinian Painted Frog, New Zealand Grayling

1a  Is endothermic (warm-blooded)................................................................. GOTO   2

1b  Is ectothermic (cold-blooded)...................................................................GOTO   6

2a  Has feathers..................................................................................... GOTO  3

2b  Has hair or fur...................................................................................GOTO  4

3a  Has narrow, straight beak     It is the ___________________________________

3b  Has wide, crooked beak     It is the ____________________________________

4a  Has horns or antlers..............................................................................GOTO  5

4b  Has no horns or antlers      It is the ____________________________________

5a  Horns or antlers have many branches      It is the __________________________

5b  Horns or antlers have no branches      It is the ____________________________

6a  Breathes with gills................................................................................GOTO  7

6b  Breathes with lungs................................................................................GOTO  8

7a  Has larger, fan-shaped fin just behind head     It is the ____________________

7b Has small pectoral fin just behind head      It is the ________________________

8a  Has scaly skin....................................................................................GOTO  9

8b  Has smooth skin     It is the _________________________________________

9a  Has front and hind legs      It is the ___________________________________

9b  Has no legs     It is the ____________________________________________

Extra Credit:
If you classify yourself what number and letter would you write your name at?  _____

SmithLifeScience