Good evening, I am John Conway, and I make art of very old things, and of new things I have made up. I have a podcast about animals with Darren Naish, and have written and illustated two books with Darren and C.M. Kosemen. My art is funded by people like you through Patreon.

You can read more about me here.

All Yesterdays

Unique and Speculative Views of Dinosaurs and Other Prehistoric Animals

Cryptozoologicon: Volume I

The Biology, Evolution, and Mythology of Hidden Animals

Quetzalcoatlus northropi

Quetzalcoatlus northropi, possibly the biggest flying animal, launching. This reconstruction is fairly speculative, as Q. northropi is known mostly from a partial wing, so the missing bits (most of it) are base on the littel Quetz.

Mount Stratosphericus

Sometime, somewhere in the Mesozoic, Mount Stratosphericus pokes a mile and a half into the stratosphere.

This is a speculative mountain (speculative geology!) – what are the chances Mount Everest is the tallest mountain ever to exist? How much taller could mountains get?


Supersaurus makes a spectacle of itself on the a hill, while Stegosaurs grazes in the foreground. The long-limbed croc relative Hallopus scurries around, and there are various pterosaurs about.


Mission control, we've discovered the nature of dark matter.

It's a very large old guy with no clothes on and a nasty looking knife.