I used to be like that with my second and third Farthing Wood stories, I had to have help from a friend for several fan characters names, I haven't had to ask him for help with any names for the fourth or fifth or any spin offs either. I just thought of names using the names from the tv series as my help.
Ex.
Ranger-->St
rangerYou can do that, or just use characters species for their names.
Like the grandchildren or parents of a character from the tv series, I used parts from snake species.
bush viper-->
BushBandy-
Bandy-->
BandyTimber Rattlesnake-->
TimberPit
Viper-->
ViperI came up with those names and eight others just using species of snakes in less than twenty minutes. You could try that (with dinosaurs that is).

Ex.
If you have a tyrannosaur rex in your story, you could 'Tyranno' or something like that.

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Your right about every writer having a defect, mine is coming up with what to write, not characters, chapter names or story titles anymore. I'm starting to get better with coming up with ideas too.