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巨大的菊石 - 博物馆藏品 - 动物化石 - Arietites Bucklandi - 56 cm - 53 cm
编号 79187883
编号 79187883
SPECIES : Allosaurus
AGE : Late Jurassic (150 million years old)
FORMATION : Morrison Formation
SIZE : Tooth 1.85”long
Allosaurus is an extinct genus of large carnosaurian theropod dinosaur that lived 155 to 145 million years ago during the Late Jurassic period .