每种动物都是有真实根据的，只是把它们卡通化了。这份名单绝对权威
我自己看的时候，认出了主角为：猛犸，地懒，剑齿虎。冰里的有一个是鱼形爬行动物，另一个像鳄鱼的祖先，还有渡渡鸟（18世纪灭绝的），负鼠。其它的没注意。有一个情节，地懒被它的“迷你物种”绑架了，那就是现在的树懒，还把地懒当成了神。当时的地懒和猛犸已经比较少了。三个主角现在都灭绝了，片中的大部分动物都灭绝了。
其中动物们为躲避洪水上了山顶的一个大船上，是借用了诺亚方舟的神话。：D
By Cate
Anteater (the doubting anteater father which maintains that mammoths have truly gone extinct)
Chalicotherium (Cholly)
Dodo (seen being killed by the hot geysers, and then in the acorn heaven)
Eagle (young hatchling fights with Scrat over the acorn)
Embolotherium (seen in waterpark questioning Manny's storytelling, referred to as "rhino" in script)
Dung beetle (seen in migration complaining about toting a mound of dung along)
Gastornis (seen in migration getting her children in a moving nest, referred to as "diatryma" in script)
Giant Armadillo (Fast Tony)
Glyptodon (Stu)
Hedgehog (seen in migration, children trying to get their grandfather out of the burrow, referred to as "molehog" in script)
Hesperornis (seen going down the waterslides in formation)
Mammuthus (Manny and Ellie)
Macrauchenia (seen in migration and in waterpark, one individual getting stuck in a waterslide, referred to as "freaky mammal" in script)
Megaloceros (seen in migration, one making way down waterslide and poking a Paleocastor in the rear with his horns, referred to as "elk" in script)
Megalonyx (Sid)
Metriorhynchus (Cretaceous)
Moeritherium (seen in migration and discrediting Fast Tony's selling of bark, referred to as "start"in script)
Musk Ox (seen in migration and accused of being fat by Fast Tony)
Opossum (Crash and Eddie)
Palaeocastor (seen in migration, exclaiming "Dam!" when the ice was cracking, referred to as "beaver" in script)
Piranha (school of piranha fight with Scrat for life and his acorn)
Platybelodon (seen in herd and openly laughing at Fast Tony, referred to as "shovelmouth" in script)
Placodus (Maelstrom)
Saber-toothed squirrel (a fictional animal) (Scrat)
Songbird (seen with younger animals questioning Manny on his family)
Smilodon (Diego)
Vulture (seen singing "Food, Glorious Food" from Oliver! when in pursuit of their prey)
By 菊石
食蚁兽(那个看着特别欠抽的玩意,食蚁兽是吻长又不是鼻子长,那里面我差点以为是什么南方有蹄类了)
爪兽(这个我还真没注意,是2里面那个放屁COS猛犸叫声的家伙?)
渡渡鸟(乐呵呵的走着走着就被烤了)
鹰(是那个秃鹫吗?
锤鼻雷兽(那个小雷兽做的很可爱,丰厚的大嘴唇)
蜣螂(搬家还带粪便球的一家)
戈氏鸟(妈妈特牛,搬着窝就跑了)
大犰狳(那个看着和二百五似的玩意)
雕齿兽(一副的白痴样)
刺猬(我还真没注意)
黄昏鸟(好家伙黄昏鸟和猛犸都见面了~~~~弄的我还以为是日本的猛鸬鹚呢)
猛犸(不说什么了)
后弓兽(电影里的我估计是不是都得什么病,然后激素打多了)
大角鹿(可是鼻子上怎么会有角呢,很奇怪啊)
巨爪地懒(主角吗?)
地蜥鳄(反派之一)
始祖象(谁看到了?我是没注意到)
麝牛(这个倒是很明显的)
负鼠(我很喜欢哥俩装死的样子)
河狸一类的动物(我也奇怪怎么鼻子上有只角呢)
食人鱼(很Q)
铲齿象啊(天,做的形象差太多了,我一直认为是什么南方有蹄类或者是滑距骨类的,带大下门齿呢~~天)
盾齿龙(和电影里的形象不怎么像,我认为是做的比较失败的一个)
剑齿松鼠?(那个最幽默最让人喜欢的角色)
长鸟(这个是什么鸟?是电影里和一堆小破烂一起的挺好看的那个?)
剑齿虎(不说什么了)
秃鹫(~~~~)
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