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Fossils of extinct Trilobites. Dudley bug or Dudley locust, Calymene blumenbachii 1, and Paradoxides spinulosus 2. Calimene di Blumenbach, Paradosside spinuloso. Handcoloured copperplate stipple engraving from Antoine Laurent de Jussieu's Dizionario delle Scienze Naturali, Dictionary of Natural Science, Florence, Italy, 1837. Illustration engraved by Corsi, drawn by Jean Gabriel Pretre and directed by Pierre Jean-Francois Turpin, and published by Batelli e Figli. Turpin (1775-1840) is considered one of the greatest French botanical illustrators of the 19th century.. (Photo by: Florilegius/Universal Images Group via Getty Images)