這隻是距今1.5億年前，也是後侏儸紀時代的「Stegosaurus stenops」（劍龍） ，是3到5公噸重的草食性恐龍。
這也是距1.5億年前，也是後侏儸紀時代的「Apatosaurus」（迷惑龍），身長可以到26公尺，可以重達32噸的巨大草食性恐龍。我之前都叫他「雷龍」。
左邊是「Diplodocus」 （粱龍）的頭顱化石，左邊是「Cammarasaurus」（圓頂龍）的頭顱化石，這兩種恐龍也都是後侏儸紀時期的，跟迷惑龍一樣都是相當巨大的草食性恐龍。草性恐龍雖然身形巨大，但是他們的頭顱都是偏小型，利於嚼食食物。
這是比較晚出現，約在後白堊紀時期的「Triceratops」（三角龍），也是草食性動物，頭部的三根突起的角狀物是其特徵。
三角龍化石的現場還有一個地方可以讓人直接觸摸三角龍的角狀物。
這也是出現在後白堊紀時代的很著名的肉食性恐龍「Tyrannosaurus」（暴龍），他擁有一口尖齒，強而有力的後肢跟尾巴，不過相對之下他的前肢就相當弱小。
這是在上白堊紀的草食性恐龍「Chasmosaurus」（開角龍）的頭顱化石，這種恐龍有著大型的頭盾。
下面照片這個我忘記是什麼恐龍的頭顱化石，不過這附近都是在講「Hadrosaurian Headwear」（鴨嘴龍的頭盾）。這種草食性的鴨嘴龍都會有很奇特的頭盾，通常頭盾是空心的，有些也可能有骨頭在頭盾裡面，空心的頭盾會震動空間，讓恐龍的叫聲更大。這種有頭盾的恐龍也常常會跟有角狀物的恐龍相比較。
這是學名「Diceratops hatcheri」也就是三角龍（Triceratops）的頭顱化石，放在玻璃櫃子裡，看起來是真品的化石，是距今7000到6500萬年前，後白堊紀時期的化石。
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