Platypelta
plat-ee-PEL-tah /ˌplætɪˈpɛltə/
flat shield
- platys · Greek · flat, broad
- pelte · Greek · small shield
The name appears to combine the Greek "platys" (flat or broad) with "pelte" (a small shield). This fits an armoured ankylosaur known from flat bony plates (osteoderms). I am inferring the meaning from the word roots, not from a source I can check.
I am not certain of this genus's publication details or current taxonomic status. I believe it is an ankylosaur name, possibly based only on osteoderms and possibly a nomen dubium or nomen nudum. Please check the primary literature before relying on it. Author, year, location and stages are left blank on purpose.