Longest name of a dinosaur

Longest name of a dinosaur
Quién
Micropachycephalosaurus
Qué
23 total number
Cuándo
01 January 0001
Micropachycephalosaurus, is the longest generic name for a dinosaur with 23 letters and nine syllables. For such a huge name, it was quite a small dinosaur as the name means `small thick-headed lizard'.