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Stegosauria
Stegosauria
is a group of
herbivorous
ornithischian
dinosaurs
that lived during the
Jurassic
and early
Cretaceous
periods
. Stegosaurian fossils have been found mostly in the
Northern Hemisphere
, predominantly in what is now
North America
,
Europe
and
China
, though one species (
Kentrosaurus aethiopicus
) is known to have lived in
Africa
. Their geographical origins are unclear; the earliest unequivocal stegosaurian,
Huayangosaurus taibaii
, lived in China.
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