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Metriacanthosauridae
Metriacanthosauridae
is an
extinct
family
of
carnivorous
allosauroid
theropod
dinosaurs
. They tended to be large
predators
, some growing to sizes of . Metriacanthosaurids are
carnosaurs
, and many were initially classified within
Megalosauridae
or
Allosauridae
. A gigantic tooth belonging to what most likely is a giant sinraptorid has been described by Xu and Clarke in 2008.
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