SMACKDOWN: CAMBRIDGE VS. NEW HAVEN

Cambridge: The Harvard Museum of Natural History (26 Oxford St., 617-495-3045, www.hmnh.harvard.edu) has a roomful of dinosaur, amphibian, and early fish fossils. The piece de resistance is the 42-foot-long skeleton of Kronosaurus, beautifully reconstructed so that it seems to be swimming in the murk of Cretaceous seas. David Lyon for The Boston Globe

By Patricia Harris and David Lyon / Globe Correspondents

Cambridge: The Harvard Museum of Natural History (26 Oxford St., 617-495-3045, www.hmnh.harvard.edu) has a roomful of dinosaur, amphibian, and early fish fossils. The piece de resistance is the 42-foot-long skeleton of Kronosaurus, beautifully reconstructed so that it seems to be swimming in the murk of Cretaceous seas.

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