Cryptozoic!

From Author Wars - https://authorwars.com/publications/cryptozoic-8385.html

Overview:

Title: Cryptozoic!
Author: Brian W. Aldiss
Year: 1968
Publisher: Doubleday
Price: $4.50
Pages: 240
Binding: Hardcover
Type: Novel
Title Reference: Cryptozoic!
Notes:
• Copyright 1967 (for the serialization), but actually published in 1968. • "First Edition in the United States of America" on the copyright page. [Currey]