too 



The Living Things of the Earth unit i 



r 



ANIMAL KINGDOM 



There are many other phyla 



Phylum CHORDATA 

 Subphylum VERTEBRATA 



The other classes include 

 bircis, reptiles, amphibia, 

 and fishes 



Class MAMMALIA 



There are about 19 

 orders among 

 mammals 

 alone 



Order RODENTIA 



There are 8 other 

 families in the 

 order Rodentia 



Family SCIURIDAE 



In this one family there 

 ore 9 other genera 



Genus SCIURUS 



^-^1 



in this one genus 

 there are 8 other 

 species 



Spec.es C4RO/./NENS/S 



I"u;. 136 This chart shows how the gray sqtiirrcl fits into the aniDial kingdom. The 

 first subdivision is the phylum. Which subdivisions follow in turn? A chart that shows 

 how one animal is classified is simple; but, if you were to make a chart to include the 

 classification of all animals, you would need a sheet of paper at least as large as your 

 room. It would take you many years to do the job. (pinney from monkmeyer) 



