Prolacerta/Prolacertaform Sources

Did a 'clusty' on 'prolacerta' and found a number of sources. I am now
looking for more, both online and offline. Yes, I did locate a listing
for a book on prolacerta in Antarctica, but it's out of print. If you
know where I can find information on the beast it would be most
appreciated.

From the one picture I found on the web I'd have to say the animal
somewhat resembled a monitor lizard superficially. Perhaps the artist
was thinking monitor when he did the rendition.
.