Text and illustrations introduce aquatic reptiles that swam in the oceans more than 70 million years ago.
- ISBN10 0590075675
- ISBN13 9780590075671
- Publish Date 1 January 1977
- Publish Status Out of Print
- Out of Print 10 April 2014
- Publish Country US
- Imprint Four Winds
- Format Hardcover
- Pages 32
- Language English