noun. A paleo-thingy-saur.
Real citation: "It IS pretty amazing how that thing got through the laser hall, past the mutant gophers and through the secret passageway.....!
Or maybe that's another ptero-dino-whatsit....!"
(April 15, 2009, The Unofficial Forums of Dr. McNinja, http://boxofbaskets.com/drmcninja/phpBB3/viewtopic.php?f=7&t=48&start=190)
Made-up citation: "In a former life, I think I was a brave caveman, hunting the noble ptero-dino-whatsit. Or maybe a sea sponge... I've always understood the plight of the sea sponge so well..."