Blank Verse
This excerpt is written mostly in blank verse. Even though some lines rhyme with each other, there is no consistent rhyme pattern or scheme.
Almost all of the lines contain the same iambic (alternating unstressed/stressed syllables) rhythm, with the exception of line 3.
If you're not honest you won't learn and without learning you won't advance in English.
Answer:
Dinosaurs evolved within a single lineage of archosaurs 243-233 Ma (million years ago) from the Anisian to the Carnian ages, the latter part of the middle Triassic. Dinosauria is a well-supported clade, present in 98% of bootstraps.
Explanation: