Parr IIL Secr, iii. § 2.) CRETACEOUS. “819 
of fishes. Altogether the earliest known birds present characters 
_ of strong affinity with the Deinosaurs and Pterodactyles,. 
§ 2. Local Development. 
The Cretaceous system in many detached areas covers a large extent 
of Europe. From the south-west of England it spreads across the north 

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of France up to the base of the ancient central plateau of that country. 
Eastwards it ranges beneath the Tertiary and post-Tertiary deposits of 
the great plain, appearing on the north side at the southern end of 
Scandinavia and in Denmark, on the south side in Belgium and Hanover, 
round the flanks of the Harz, in Bohemia and Poland, eastwards into 
