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Assertion : The earliest fossil form in ...

Assertion : The earliest fossil form in the phylogeny of horse is eohippus.
Reason : Eohippus lived during the early Pliocene epoch.

A

If both assertion and reason are true reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
Assertion is true but reason is false.
The evolution of horses could be crroneously depicted as an undeviating straight line progression from the small, terriero (small dog of various breed) sized Hydracotherium eohippus to the large modern horse, Equus eophippus originated from Ecocene period. Eohippus (meaning "dawn horse") was the earliest-known horse. It was the size of a tiny dog . Another name for this genus is Hyracotherium (meaning "mole beast"). Eohippus was only 2 feet (60 cm) long and 8 to 9 inches (20 cm) high at the shoulder. This primitive horse had 4 hoofed toes on the front feet and 3 hoofed ant on each hind foot. It had a long skull with 44 long-crowned teeth. Eohippus was a grazing herbivore that ate soft leaves and plant shouts. Eophippus lived during the early Eocene Epoch, about 50million years ago. The major stages in ovolution of horse are : (i) eohippus , (ii) mesohippus,
(iii) merychippus, (iv) pliohippus, and (v) equus.
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