Animal KingdomHard
Question
Which one of the following is not a living fossil ?
Options
A.King crab
B.Sphenodon
C.Archaeopteryx
D.Peripatus
Solution
Archaeopteryx lithographica is not a living fossil. It is a fossil bird that lived in Jurassic period about 180 million years ago. Its fossil displays the characters of both reptiles (eg, long tail, bones not pneumatic, jaws with teeth, fingers teminating into claw, presence of weak sternum, free caudal vertebra etc) and birds (eg, resence of feathers , jaws modified into beak, forelimbs modified into winks, intimate fusion of skull bones etc). King Crab Sphenodon and Peripatus are the living fossils.
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