Then you'd have to have a "Prehistoric Island" in every region... which still would make the type too exclusive to the area.
Grouped those together. As I said, in fantasy, dragons and dinosaurs often get grouped together, such as in Dungeons and Dragons (DnD) where, depending on the edition dinosaurs are classified as dragons. Even gamefreak seems to link them, the T-Rex pokemon is dragon type and mega Sceptile gains the dragon type. It's believed that in real life dinosaur bones contributed to the dragon myth.
I just don't hink they are, in an abstract, basic level different enough to warrant their own type. Even mechanics wise... what would a dinosaur be strong or weak against? Strong against Grass? (because the one thing grass needs is another weakness)
Nobody outside of Schwarzenegger in batman and Robin says the dinosaurs were destroyed by an Ice Age. The K-Pg extinction event was more akin to a nuclear war than an ice age with some theories speaking of Nuclear Winter (something altogether different from an Ice Age) global firestorms and a poisonous atmosphere. Following that logic it would make more sense making them weak to Poison, Fire and Rock.
Exactly, which is why they should not be shoehorned into a single type, but kept as they are now belonging to a whole number of types. It'd be like making a "mammal" type.
I agree we need some revision. But maybe a different type. Not saying I have a concept I consider good enough, but it would need to be something more versatile I reckon.
Sorry for the late reply. Had a very busy day today!
First of all thanks for clearing it up about what is "DnD". I don't know Dungeons and Dragons, so I can't give any opinion on that, thanks anyway for telling me what it is!
As for the Dinosaur Type, you said about it being just a group of animals, we have that on Bug, Flying and a bit of Water type too. I understand your point, but I think dinosaurs have an incredible vast set of possibilities. We have dinosaurs who inhabited oceans, flying dinosaurs, dinosaurs who could make use of toxic substances, like Dilophosaurus, Dinosaurs who had some huge bone mass in some parts in order to defend itself, dinosaurs from lots of different sizes. All other Pokemon Types, could be used to make good mixes. You can even use the places they inhabited to set that.
As for what I think dinosaurs would be effective against, I think they could be effective against Dragon Type (Dinosaurs were strong creatures who dominated Earth during a very long period of time), against Steel (Their strenght as well as Fighting Type is great enough to even go well against Steel), Ground Type (Their strenght and usually great body mass, are heavy enough to leave marks everywhere) and also Ghost Type (Dinosaurs would beat death, by coming back from fossils to live once again).
Who would be effective against Dinosaur: Dragon Type (For the same reason as the dinousaurs are effective against dragons, they are rivals, on one side, fantasy creatures who were created to be the most powerful, on the other side, dinosaurs were the most destructive and powerful creatures to step on Earth), Ice Type (For the Ice Age theory, you said about Schwarzenegger, but this theory were used in many other stuff, inclusing the movies (Ice Age)) and Poison Type (Thinking again about the huge meteor that fell on Earth, the cloud of dust that covered Earth, had a lot of toxic substances, so it's logical to give Poison that advantage).
Against who, Dinosaur attacks would be (not very effective): Ice (Dinosaurs simply could not do anything to fight against the ice and it's terrible power), Grass Type (no matter how much plants the herbivorous dinosaurs would eat, they excrement would spread seeds and help them to grow back), Fight Type (Dinosaurs didn't even had the chance to face humans) and Poison (For the same reason that Posion are strong against dinosaurs).
Attack types that would be (not very effective) on dinosaurs: Fight Type (for the same reason that dinosaurs aren't very effective against fighters), Ghost Type (Dinosaurs came back to life from the fossils, beating death), Ground Type (The soil even helped the fossils to last for millions of years) and Water Type (Water can't do anything against dinosaurs rough skins).
Of course it's just an idea and could be thought much deeper into, but I would love to see Pokemon expanding the quantity of types, it would be much better for us, giving much more different combinations and possibilities to form our Pokemon teams.
As for the Type Chart, there are a few things that really bugs me. Some examples.
First, why Poison isn't strong against Bug? What everybody uses to kill bugs? Poison! That would be the most logical effectiveness of Poison Type, together with being strong against Grass.
Second, Grass Type has too much weaknesses comparing to it's resistances and effectiveness.
Third, Ice Type has only one resistance (against itself), there should be much more, Water and Grass comes up to my mind, but it would be making Grass even weaker, so Electric could be there (Ice particles in clouds create lightning, so the electricity there exists thanks to that ice) and Fairy also comes up to my mind.
Fourth, Steel Type is resistant to 10 types and doesn't receive damage from another one, while it's strong against other 3 types. They are too out of balance comparing to other types.
I think that's it, sorry for writing so much, everytime I think and write about Pokemon I get excited. It's very good to find such a place to do so. Hope to have much more talks like this with you and all the other members here.
PS: What's your favourite Pokemon Type?