It's pliohippus
Pliocene
During the Jurassic period.
Of, pertaining to, or characterizing, the most recent division of the Tertiary age., The Pliocene period or deposits.
During the Cretaceous period, about 140 million years ago
The Neogene Period is not a part of the Quaternary Period. The Quaternary Period occurred right after the Neogene Period. The Neogene is divided into two, Miocene and the Pliocene epochs.
An avisaurid is a member of the Avisauridae, a family of extinct birds from the Cretaceous period and native to North and South America.
The Columbia Plateau in Washington, Oregon, and Idaho is a flood basalt plateau. It formed during the Pliocene period and is one of the largest flood basalts to ever form on the planet.
The trilobites went extinct during the mass extinction at the end of the Permian period.
Ammonites went extinct at the end of the Cretaceous Period.
No. If you count birds as dinosaurs, they still exist. If you don't, dinosaurs became extinct at the end of the Cretaceous, not the beginning.
The microraptor existed during the early Cretaceous period. It became extinct following the KT extinction event, which wiped out the majority of life on earth.
There is no doubt of it. There were probably millions of plant species that came and went during the Carboniferous.