Primates originated about
$100$ million years ago
$65$ million years ago
$10$ million years ago
$30$ million years agow
Seed ferns originated in
The flowering plants originated in which of the following periods?
Cretaceous period of the Mesozoic era is characterised by which of the following?
Which of the following arrangement of periods of the mesozoic era gives a correct sequence from the earliest to the latest?