The Marianne Smith Memorial Lecture will be given from 6:30 to 8 p.m. Tuesday at the Bruce Museum as renowned paleo-artist and “Dinotopia” author James Gurney speaks on “How I Paint Dinosaurs: Art, Science, and Imagination.” Gurney will discuss the practical methods that he uses to translate a scientist’s understanding of an extinct creature into a realistic painting. He will also chronicle the creative development that led to the fantasy universe of “Dinotopia,” where humans and dinosaurs live in peaceful interdependence, and how scientists and librarians contributed their expertise to that project, too. After the lecture, the author will be available for a book signing. The museum will open at 6:20 p.m., with a reception at 6:30, and the talk at 7. Registration at BruceMuseum.org. Free for members and students with ID; nonmembers $15.