↑อ้างอิงผิดพลาด: ป้ายระบุ <ref> ไม่ถูกต้อง ไม่มีการกำหนดข้อความสำหรับอ้างอิงชื่อ my
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↑ 11.011.111.2Boessenecker RW, Ehret DJ, Long DJ, Churchill M, Martin E, Boessenecker SJ. 2019. The Early Pliocene extinction of the mega-toothed shark Otodus megalodon: a view from the eastern North Pacific. PeerJ 7:e6088 https://doi.org/10.7717/peerj.6088
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