The dinosaur is about 95 million years old; it lived during the Cretaceous period and ate only plants which means that it was a herbivore.
请问老师：
which means…是限制性定语从句修饰句子“it ate only plants”吗？非限制性which从句是可以修饰句子，但是限制性的用法不清楚
which means…是非限制性定语从句，修饰The dinosaur is about 95 million years old; it lived during the Cretaceous period and ate only plants。非限制性定语从句前面通常用逗号，但是有时也可以不用逗号，主要应该根据句意来判断。
