Illustrates the geological periods from the present back to the earliest or Precambrian Era, and includes major developments and life forms of each time frame.

Time Tunnel 1999, Child's Play International, Swindon

ISBN-13: 9780859539289

Revised edition

Paperback

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Time Tunnel 1995, Child's Play International, Swindon

ISBN-13: 9780859539401

Hardcover

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