Eozostrodon was one of the first mammals, which lived during the Upper Triassic and the Lower Jurassic. This was one of the largest Therapsid (proto-mammal), measuring more than a meter long.
Like the modern duck-billed platypus, this mammal laid eggs, but these eggs' hatchlings were then fed with milk from their mother's mammary glands. Its teeth were typically mammalian, being diferentiated into molars and premolars with triangular cusps.
With its short snout, five-toed, clawed paws and a long hairy tale, and like most primitive mammals, Eozostrodon resembled a shrew. It belonged to the Morganucodontidae family.
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