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Question
Which of the following is called living fossil ?
Which of the following is called living fossil ?
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Solution
The correct option is B All of the above
- Sphenodon or hatteria is the last survivor of the reptilian order Rhynchocephalia, which evolved in the early Mesozoic era, about 200 million years ago.
- Peripatus is sometimes considered a living fossil because it and other onychophorans are transitional between Arthropoda and Annelida and retain a large number of archaic features.
- A new horseshoe crab species, Limulus darwini, is described from the uppermost Jurassic (The only extant species Limulus polyphemus (Linnaeus) inhabits brackish-marine, shallow water environments of the east coast of the United States.
So, the correct answers are " All of the above".
- Sphenodon or hatteria is the last survivor of the reptilian order Rhynchocephalia, which evolved in the early Mesozoic era, about 200 million years ago.
- Peripatus is sometimes considered a living fossil because it and other onychophorans are transitional between Arthropoda and Annelida and retain a large number of archaic features.
- A new horseshoe crab species, Limulus darwini, is described from the uppermost Jurassic (The only extant species Limulus polyphemus (Linnaeus) inhabits brackish-marine, shallow water environments of the east coast of the United States.
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