A.Ordovician
B.Cambrian
C.Devonian
D.Cambrian
Related Mcqs:
- Non-chordates of all phyla flourished during the period:
- Coenozoic Era has periods namely:
- First land vertebrate originated during:
- Oldest fossil belonged to the period:
- Land elevation at places formed deep continental seas in the period:
- Chordates as lower fishes in fresh water appeared in:
- In which of the following periods the crocodiles, alligators and advanced lizards originated:
- Which of the following periods does not belong to Mesozoic Era:
- Large and winged insects originated about 34.5 erore years ago during the period known as:
- Life originated during:
