Extended Data Fig. 3: Comparison of Qianodus tooth whorls with the whorl-based dentition of the stem chondrichthyan Doliodus problematicus. | Nature

Extended Data Fig. 3: Comparison of Qianodus tooth whorls with the whorl-based dentition of the stem chondrichthyan Doliodus problematicus.

From: The oldest gnathostome teeth

Extended Data Fig. 3

(a) Qianodus tooth whorls at a late stage of development (from top to bottom IVPP V26652, V26641, V26649, V26647, V26655 and V26648). (b) Tooth whorls of the lower left jaw ramus of Doliodus at positions 1 to 9 (P1–9) (adapted from Maisey et al.32).

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