Oldest ceratopsian dinosaur

According to Official Guinness Records,

The oldest ceratopsian dinosaur discovered to date is Liaoceratops. It was discovered by Xing Xu (China) of the Chinese Academy of Sciences, Beijing, in the Yixian Formation, a fossil-rich rock bed in northeast China. The rocks in which the skulls and skeletons were found date the creature at having lived 120-145 million years ago. This dog-sized herbivore was a precurser to the more famous Triceratops. The discovery was announced on 21 March, 2002 in the journal Nature. Ceratopsian dinosaurs are characterised by a beak and a bony frill. It is uncertain whether Liaoceratops stood on two legs or all fours, like its larger descendants.

For a complete list of 2002 records, please visit 2002 Guinness Records in China.

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