The first mammals appeared in which geological period?

  • A
    Triassic
  • B
    Jurassic
  • C
    Cretaceous
  • D
    Tertiary

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Similar Questions

Identify the organism based on the following characteristics:
- They were land reptiles.
- They had huge, fearsome, dagger-like teeth.

In which period did giant reptiles dominate the earth?

Which was the largest dinosaur and what was its height in feet?

Match the following columns.
Column-$I$Column-$II$
$A.$ $500$ million years ago$1.$ Sea weeds and few plants
$B.$ $350$ million years ago$2.$ Jawless fishes
$C.$ $320$ million years ago$3.$ Invertebrates

During which geological period did the dinosaurs originate?

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