Means: many prickles.... Period: 132 to 112 million, jura....Classification: Kingdom: Animalia Phylum: Chordata Class: Sauropsida Superorder: Dinosauria Order: Ornithischia Suborder: Thyreophora Infraorder: Ankylosauria Family: Ankylosauridae Subfamily: Polacanthinae Genus: Polacanthus.... Length: 4 a 5m.... Diet: Herbivore.... Found: western europe. #dinosaur #Polacanthus
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