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* 1. In a paper published this year, paleontologists suggest that which species of carnivorous dinosaur from the Late Cretaceous Epoch should actually be split into three different species?

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* 2. According to Swedish scientists studying fish fossils from the Tanis Site in the Hell Creek formation in southwestern North Dakota, the asteroid that ended the Cretaceous Period hit the Earth in what season of the year?

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* 3. Which of the following is technically not a dinosaur?

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* 4. A recently described fossil squid, Syllipsimopodi bideni, is suggested to be the earliest vampyropod. The vampyropod clade includes such creatures as octopus and vampire squids. This places the vampyropod clade within which animal class?

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* 5. Which of these groups included the biggest animals ever to walk upon the Earth?

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* 6. In April 2021, a new paper calculated how many T-rexes ever existed before they went extinct at the end of the Cretaceous. What was the estimate?

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* 7. Bashanosaurus primitvus was recently discovered in Asia and is the oldest example of which type of Jurassic dinosaur?

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* 8. The seed of a flowering plant is protected by two integument layers whereas the embryo of the seed of a gymnosperm such as a conifer is surrounded by one cup-shaped integument layer. What structure in gymnosperms is thought to have evolved to form the outer integument of flowering plants?

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* 9. What makes both Hesperornis regalis and Ichthyornis dispar so significant to scientists interested in evolution?

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* 10. A large specimen of the theropod Sinosauropteryx described in 1998 had the skeleton of what kind of animal preserved in its stomach region?

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