A Gastornis walks its chicks in an early Eocene forest. If you can guess which two Japanese media products I've based their colouration on, you get a cookie.
On this entry of Prehistoric Kingdom Candidates, two doomed by the worst mass extinction of all time, and one that flourished after the most famous one; Inostrancevia, Scutosaurus and Titanoboa respectively.
Description and poll in the description.