Mean atmospheric O2
Geologic Time Scale
Styracosaurus and flowers
A 18-foot-long, six-foot-tall and three ton herbivorous ceratopsian dinosaur of the genus Styracosaurus samples flowers of the order Ericales amidst varieties of fern 76 million years ago in North America. Flanking the Styracosaurus are willows of the genus Salix.
Copyright © Walter Myers. All rights reserved.
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