One dinosaur with 12 letters in their name is the Agujaceratop. The Agujaceratop use to be classified as a species of the Chasmosaurus.
Troödon
That's one... I don't any other dino's have 7 letters.
torosaurus
diplodocus
Utahraptor
Allosaurus
The hippopotamus is a mammal that has 12 letters in its name. and the big blue whale
Hippopotamus,Yellow jacketThe hippopotamus has twelve letters in its name.
12 letters
Passionfruit.
IndianapolisPhiladelphiaPoughkeepsieBeverly HillsSan FranciscoJacksonville
apatosaurs
Liechtenstein is the only one I know. ;)
Madagascar is a country that has 12 letters in its name.
Granada fruit.
my dinosaurs
Walking with Dinosaurs was released on 12/20/2013.
Clash of the Dinosaurs was created on 2009-12-13.