Dinosaurs suddenly disappeared from the Earth $...........$ million years ago.

Which organisms were dominant during the Mesozoic era?

Select the option that shows the correct sequence of plant evolution.
$(I)$ Chlorophyte ancestors
$(II)$ Rhynia-type plants
$(III)$ Psilophyton
$(IV)$ Tracheophyte ancestors

Ancestral amphibians were tetrapods that evolved during

Evolutionary history of an organism is known as

From which group did the $Prototheria$ evolve?