Prehistoric Scratchpad
PhBP Po10BP

The oldest known Eutherian, ancestor to today's placental mammals. Found in China. Lived in the late Triassic Period. Adapted for climbing trees.

Juramaia Sinensis Web Pages[edit | edit source]

Classification[edit | edit source]

  • Phylum Chordata (Chordates) - Animals with a backbone or closely related to one.
    • Class Mammalia
      • Order Multituberculata (Multituberculates) - A group of successful rodent-like mammals that with origins in the Triassic and lasted until after the fall of the dinosaurs until they were out-competed by rodents and other mammals. The longest lived group of mammals. Ate mostly flowering plants.
      • Subclass Theria (Therians) - Mammals which give live birth to their young without a protective shell.
        • Clade Metatheria (Metatherians) - Clade of mammals more closely related to Kangaroos than humans. Many of these species were wiped out along with the Dinosaurs, allowing placental mammals to take their place.
        • Clade Eutheria (Eutherians) - Broad infraclass including placental mammals and close relatives.
          • Species Juramaia Sinensis - The oldest known Eutherian, ancestor to today's placental mammals. Found in China. Lived in the late Triassic Period. Adapted for climbing trees.
          • Infraclass Placentalia - Infraclass of Mammals that contain a Placenta. They arose quickly after the demise of the dinosaurs, the first fossils found 1000,000 years after the extinction.


Juramaia Sinensis In the News[edit | edit source]

Earliest Ancestor to Placental Mammals Found (Aug 2011)[edit | edit source]

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