Dogs were not around in the early Cenozoic, and award originally for Wiki user Titanium_Dragon, who once removed a claim that dogs (not dog-like animals or dog-sized animals but DOGS) existed within Montana's early Cenozoic fauna, a claim about as hilarious as it is blatantly wrong.
<a href="//commons.wikimedia.org/wiki/User:JoePhin" title="User:JoePhin">JoePhin</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span> This file was derived from: <a href="//commons.wikimedia.org/wiki/File:Dog_for_Senior_Dog_Food_Diet_Wikipedia_Page.jpg" title="File:Dog for Senior Dog Food Diet Wikipedia Page.jpg">Dog for Senior Dog Food Diet Wikipedia Page.jpg</a>: <a href="//commons.wikimedia.org/wiki/File:Dog_for_Senior_Dog_Food_Diet_Wikipedia_Page.jpg" class="image"><img alt="Dog for Senior Dog Food Diet Wikipedia Page.jpg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/97/Dog_for_Senior_Dog_Food_Diet_Wikipedia_Page.jpg/100px-Dog_for_Senior_Dog_Food_Diet_Wikipedia_Page.jpg" decoding="async" width="100" height="67" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/97/Dog_for_Senior_Dog_Food_Diet_Wikipedia_Page.jpg/150px-Dog_for_Senior_Dog_Food_Diet_Wikipedia_Page.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/97/Dog_for_Senior_Dog_Food_Diet_Wikipedia_Page.jpg/200px-Dog_for_Senior_Dog_Food_Diet_Wikipedia_Page.jpg 2x" data-file-width="5184" data-file-height="3456"></a><br>