Obdurodon

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Obdurodon (order Monotremata, family Ornithorhynchidae) A genus of early Miocene platypus, with two species, known from very well preserved material from such sites as Riversleigh, Queensland, Australia. They possessed well-developed, functional teeth, unlike the living platypus, and had skull bones that were less fused, from which it can be seen that monotremes, unlike other living mammals, retained septomaxillae.

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Obdurodon (order Monotremata, family Ornithorhynchidae) A genus of early Miocene platypus, with two species, known from very well-preserved material from such sites as Riversleigh, Queensland, Australia. They possessed well-developed, functional teeth, unlike the living platypus, and had skull bones that were less fused, from which it can be seen that monotremes (Monotremata), unlike other living mammals, retained septomaxillae.