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, Lower Devonian, Bac Bun formation, Dông Mo, Vietnam. A. Photograph of the specimen. B. Interpretative drawing. Abbreviations:1-5r, tooth-rows; a.de, anterior denticles

, dental plates, emb, lateral embayment; int.de, interow denticles; p.l.la, horizontal posterolateral lamina; ra.c, centre of radiation

, Figure 9: Lungfish tooth plates., FIGURE 3

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I. ,

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