It may be that he swept back into the past, and fell among the blood-drinking, hairy savages of the Age of Unpolished Stone; into the abysses of the Cretaceous Sea; or among the grotesque saurians, the huge reptilian brutes of the Jurassic times.
There are no more uses of "Jurassic" in the book.
Show samples from other sources
"I don’t know what they did," Deborah said, "but it all sound like Jurassic Park to me."
Rebecca Skloot -- The Immortal Life of Henrietta Lacks
It was the size of a dinner plate and had not existed on the earth since the Jurassic period.