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English

In 2001, Zhe-Xi Luo and colleagues alternatively proposed that a tribosphenic molar pattern had arisen twice (compare Figure 3, top)—once giving rise to the marsupials and placentals (Boreosphenida), and once producing Ambondro, the Cretaceous Australian Ausktribosphenos, and the living monotremes, which first appeared in the Cretaceous (united as Australosphenida).

Tagalog

Sa 2001, Zhe-Luo Xi at mga kasamahan bilang kahalili ipinanukalang na ang isang tribosphenic bagang pattern ay arisen sa dalawang beses (ihambing Figure 3, tuktok)—sa sandaling nagbibigay sa pagtaas sa marsupials at paggamit (Boreosphenida), at isang beses sa paggawa ng Ambondro, ang Kretaseyoso Australian Ausktribosphenos, at ang buhay na monotreme, kung saan unang lumitaw sa panahong Kretaseyoso (united bilang Australosphenida).