Suborder
Whippomorpha (Cetaceans and hippopotamuses)
Phocoena phocoena vomerina. Photo: (c) madfox, some rights reserved (CC BY-NC)
Whippomorpha is the clade containing the Cetacea (whales, dolphins, etc.) and their closest living relatives, the hippopotamuses, named by Waddell et al. (1999). It is defined as a crown group, including all species that are descendants of the most recent common ancestor of Hippopotamus amphibius and Tursiops truncatus. This would be a subgrouping of the Cetartiodactyla (which also includes pigs and ruminants). How recently whales and hippos share a common ancestor is unclear, though the genetic
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        Humboldt Life
        
        
        
        
    
    
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        Kingdom: Animalia (Animals)
        
        
        
        
    
    
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        Phylum: Chordata (Chordates)
        
        
        
        
    
    
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        Subphylum: Vertebrata (Vertebrates)
        
        
        
        
    
    
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        Class: Mammalia (Mammals)
        
        
        
        
    
    
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        Subclass: Theria (Therians)
        
        
        
        
    
    
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        Infraclass: Placentalia (Placental mammals)
        
        
        
        
    
    
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        Superorder: Laurasiatheria (Ungulates, carnivorans, and allies)
        
        
        
        
    
    
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        Order: Artiodactyla (Even-toed ungulates and cetaceans)
        
        
        
        
    
    
    - Suborder: Whippomorpha (Cetaceans and hippopotamuses)
 
 
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        Order: Artiodactyla (Even-toed ungulates and cetaceans)
        
        
        
        
    
    
    
 
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        Superorder: Laurasiatheria (Ungulates, carnivorans, and allies)
        
        
        
        
    
    
    
 
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        Infraclass: Placentalia (Placental mammals)
        
        
        
        
    
    
    
 
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        Subclass: Theria (Therians)
        
        
        
        
    
    
    
 
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        Class: Mammalia (Mammals)
        
        
        
        
    
    
    
 
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        Subphylum: Vertebrata (Vertebrates)
        
        
        
        
    
    
    
 
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        Phylum: Chordata (Chordates)
        
        
        
        
    
    
    
 
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        Kingdom: Animalia (Animals)
        
        
        
        
    
    
    
 

 
     
   
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