Discovery of the first Mosasaur (<i>Mosasaurus hoffmani</i>), at Maastricht, engraving by G. R. Levillaire, published in the book <i>Histoire naturelle de la montagne de Saint-Pierre de Maestricht</i>, by Barthélemy Faujas de Saint-Fond on Google books, page 37
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G. R. Levillaire</div>
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