pelycosaurs walked the earth #2

I couldn't believe it: inside my order from Pomegranate was a whole dinosaur* poster, crumpled up and used for packing! So I'm doing what I can to recycle it yet again...the poor thing. (Background by my hero, William Morris.)

*--they're feet from a Dimetrodon, which technically wasn't a dinosaur. Much earlier epoch. =shrug=