A small fossil discovered from the middle Jurassic period offers some of the oldest evidence of chewing, swallowing, and suckling, which are characteristics associated with mammals. This finding suggests that these traits emerged at least during the time when dinosaurs were dominant. The research was conducted by scientists from Shandong University of Science and Technology.
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Fossil from Middle Jurassic Provides Evidence of Early Mammalian Traits
A fossil from the middle Jurassic period has been identified as providing early evidence of mammalian traits such as chewing, swallowing, and suckling. This discovery indicates that these abilities may have developed during the time of the dinosaurs.
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Original Headline
This surprising mammal fossil is giving scientists something to chew on
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Fossil from Middle Jurassic Provides Evidence of Early Mammalian Traits