Simplify the following text for a Grade 9 native English-speaking person.
Original: Until recently , all that was known of the genus was a few fossilised teeth and armor scutes , which were discovered in the Sahara Desert by the French paleontologist Albert-F Ã lix de Lapparent , in the 1940s or 1950s .
Simplified: Until recently , all that was known of it was a few fossilised teeth and armor scutes , which were discovered in the Sahara Desert in the 1940s or 1950s .