Fig. 7
Comparison of the number of primary ribs with the diameter of mbe.9305 (black triangle), and mbe.1401 (black square) (black triangle) databased by Bonnot [25]: (A) Peltoceras athleta macroconchs [M], and (B) Peltoceras athleta microconchs [m]
Fig. 7 | BMC Ecology and Evolution