[cproctor]

My favorite dinosaur, not a dinosaur.

[OrangeMango]

https://www.fieldmuseum.org/blog/dimetrodon-not-dinosaur

They have a wonderful section in the museum about dimetrodon; you have to pass through Mass Extinction #4 to get to the dinosaurs.

PS - somewhat controversial perhaps, but you have to pass into Mass Extinction #6 to exit the entire exhibit: the museum contends it is happening now.

[nobleach]

For some odd reason they've always been mine too (cue "are we now best friends?" reddit meme). It wasn't until a few years ago that I was in a museum and noticed the years didn't line up with the Jurassic period. It was a sad day.