Many earth scientists have suggested that the Earth has been expanding in size since the time of the dinosaurs. One of the first reasons proposed to explain continental drift (in 1933 by Hilgenberg) was that the Earth had expanded in size causing the continental land mass to split apart.
Other earth scientists note that fitting the land and oceans which existed 65 million years ago on an Earth of today's diameter leaves vast spherical gaps in the ocean floor. These gaps can be removed by reducing the size of the ancient Earth.
Detailed mapping of the age of the ocean floors proves that the effect progressed over time. This is usually known as the Expanding Earth Theory and is supported by a group of dedicated Earth scientists who continue to publish new geological evidence.
One of the major unsolved puzzles for Earth theory is why the Earth should be expanding over time. This is why the dinosaurs' large size is so interesting. Because the size of life is related to gravity it suggests that the Earth's gravity must have increased over time and this is most easily explained by an Earth that has increased in size and mass.
A short history of the Expanding Earth Theory and its development is given in chapter 3 of Dinosaurs and the Expanding Earth. Also look at suggestions for further reading and the links to expanding earth sites.
