Note the difference in the box art between the 2 pictures. The original box has a dinosaur pictured on the box. Later versions had the dinosaur removed. This was because customers complained when they found out that the dinosaur wasn't included in the kit. The same thing happened with the Neanderthal Man kit. The box size also change between the 71 and 72 versions.
I have been told that the flying reptile can be mounted to the roof of the cave. I haven't been able to get it to stay on the top. A little glue might get it to stay in place, but I don't want to do something like that. I like being able to move things around on my kits.
as you can see in the picture, you can combine 2 cave
kits bases to make a really big cave.
This was in a first edition
Canadian box. Which leads me to believe that this might
have been from the first production run in Canada.
Pictures and information provided by Trevor Riehl