One of the more mysterious items in Bat-lore is the presence of a giant T. rex in the trophy room of the Batcave. THIS SITE inflorms us that the T. rex (above) first appeared in Batman #35 in June 1946 with art by Bob Kane and Ray Burnley.
The dinosaur showed up in the Batcave two years later in Batman #48 in August 1948 with art by Jim Mooney.
