A.Ordovician period
B.Silurian period
C.Permian period
D.Cambrian
Related Mcqs:
- Cephalopod Molluscs were dominant during:
- Chordates as lower fishes in fresh water appeared in:
- The fishes dominated during:
- Trilobites and Brachiopods were dominant during:
- Palaeozoic era does not include:
- First land vertebrate originated during:
- Brachiopods and Copepods dominated in:
- In geological history of the earth, the beginning of birds and mammals occurred in:
- Amphibians were at climax during:
- Fossil records indicate that insect evolved during:
