Present day mammals have their predecessor in

The origin of seeds in land plants was achieved about $345 \; \text{million}$ years ago, in lineages recognized as ancestral to all more advanced vascular plants in:

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

Which ancestor is present in the ancestral lineage of $Triceratops$?

Match List $I$ with List $II$:

List $I$	List $II$
$A$. Mesozoic Era	$I$. Lower invertebrates
$B$. Proterozoic Era	$II$. Fish and Amphibia
$C$. Cenozoic Era	$III$. Birds and Reptiles
$D$. Paleozoic Era	$IV$. Mammals

Choose the correct answer from the options given below:

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