These are names I’d like to use if I ever discovered some new type of prehistoric animal. If you happen to be in the position where you need a name to use for a new discovery feel free to help yourself to a genus provided the species epithet is maynardi or some such. 
Ammonites
Jerichoceras
Ceratopsians
Cool genus suffix:
-eale or -yale after the heraldic beast
Dromaeosaurs
Terraquila- “land eagle”
Pterosaurs
Cherubodactylus
Seraphsaurus
Felltherium tolkieni- after the Fell beasts of the LOTR
Cool genus suffix:
-wyvern
Sauropods
Eccebehemoth
-elkae after fictional paleontologist Anne Elk, who “has a theory about the Brontosauruses.”
Stegosaurs
Hystricosaurus- “porcupine lizard”
Tyrannosaroids
Quintaglio after the fictional race of intelligent tyrannosauroids of the same name.
