DINOSAUR GLOSSARY AND TRADING CARD SET Use this section as a glossary or print out copies to make trading cards. For trading cards, cut out each box along the solid line and then fold in half along the dotted line. Glue the two sides together and you’re done!
Named after paleontologist and ornithologist, Alexander Wetmore, literally
ALEX’S BIRD
Bird Omnivore Alexornis is an extinct, prehistoric bird, about the size of a sparrow that lived at the time of the dinosaurs. One of the most unusual features of many ancient birds like Alexornis is that they still had teeth, which modern birds lost at some point during their evolutionary history. Amazingly, scientists have successfully made chickens grow teeth in laboratory experiments. That means the genes that code for teeth are still hidden away in the DNA of living birds!
ALEXORNIS FIRST TOOTH Mammal Omnivore Alphadon was a small opossum-like mammal known from rocks across much of western North America. Like many other mammals, Alphadon probably had an excellent sense of smell, which would have helped it to track down food during the darkness of night.
ALPHADON Fold Here
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