The sequence in evolution of horse was

Equus, Eohippus, Mesohippus, Merychippus

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Eohippus, Mesohippus, Merychippus, Equus

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Mesohippue, Eohippus, Equus, Merychippus

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Meryehippus, Mesohippus, Eohippus, Equus

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Solution

The correct option is B Eohippus, Mesohippus, Merychippus, Equus
Every one of the names on the tree is family names, so review that every genu incorporates a group of firmly related species.

                                          
4My   Hippidion  Equus

         |        |    Astrohippus

         |        |    Pliohippus          
12My     Dinohippus    Calippus    Pseudhipparion

             |          |           |               
             ------------------------
15My                  \  |  /                                 
                       \ | /                     
17My                Merychippus                         
                         |          
                         |               
23My                Parahippus                       
                         |                                        
                        (Kalobatippus?)
25My                                |  
                                    |                                     
35MY                                |
                                Miohippus  Mesohippus
                                      |        |
40MY                                  Mesohippus
                                          |                                          
                                          |
45MY                      Paleotherium    |
                              |          Eohippus
                              |              |
                       Propalaeotherium      |       Haplohippus
                              |              |       |
50MY                   Pachynolophus         Orohippus

So,the correct option is'Eohippus, Mesohippus, Merychippus, Equus'.

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Similar questions

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Column I

Column II

1	Liger	A	Equus quagga X Equus asinus
2	Zonkey	B	Panthera tigris ♂ X Panthera leo ♀
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