Proceedings / Lawrence, Kansas : Allen Press (1971) / Symposium North American Paleontological Convention. Part L: Cretaceous biogeography 1 1969
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Contiene :
- Biotic provinces on the Jurassic-Cretaceous floral transition / Lawrence, Kansas : Allen Press (1971)
- Marine Cretaceous biotic provinces of Western and Arctic Canada / Lawrence, Kansas : Allen Press (1971)
- North American Cretaceous biotic provinces delineated by gastropods / Lawrence, Kansas : Allen Press (1971)
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