Which was first ice age or Jurassic periods?

The Jurassic period came first, lasting from about 201 to 145 million years ago, while the Ice Ages, specifically the most recent one, began around 2.4 million years ago and continue into the present. The Jurassic period is known for the dominance of dinosaurs, while the Ice Ages are characterized by glacial periods and significant climatic changes. Thus, the Jurassic period predates the Ice Ages by millions of years.