line drawing of large tree fern and 2 small dinosaurs.
"Cycadeoidea pulcherrima" is an example of an extinct group of seed plants known as cycadeoids. These plants lived during the Cretaceous. A small dinosaur known as "Hypsilophodon wielandi" is shown with the
cycadeoid Fossils of "Cycadeoidea" are known from an abolished national monument that was called Fossil Cycad National Monument, South Dakota.
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