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There are two species of this Acanthodii that lived through the lower Devonian (Lochkovian), some 416 to 359 million years ago. ==''Tetanopsyrus lindoei''== Authority: Gagnier, Hanke and Wilson, 1999 Size: Length: 4 cm Remains: Holotype (UALVP 39078): articulated skeleton. Referred Materials: UALVP 32571, 38682, and 43026. Age and Distribution: Horizon: lower Devonian (Lochkovian). Locality: MOTH locality outcrop in the Mackenzie Mountains, western Northwest Territories, Canada. Classification: Acanthodii Diplacanthiiformes Tetanopsyridae Further Reading: Gagnier P.-Y., G. F. Hanke, and M. V. H. Wilson. 1999. ''Tetanopsyrus lindoei'', gen. et sp. nov., an Early Devonian acanthodian from the Northwest Territories, Canada. Acta Geologica Polonica 49:81–96. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Tetanopsyrus」の詳細全文を読む スポンサード リンク
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