Figure 18 in Growth and textural ageing in long bones of the American alligator Alligator mississippiensis (Crocodylia: Alligatoridae)

Figure 18. Individual variation in surface pattern and growth in Lake Griffin alligators. A, overprinted etched and dotted porosity (FWC 40723, femur). B, mainly smooth surface with faint scattered dotted porosity (FWC 40583, femur). C, fibrolamellar zones underlying porous surface shown in A (FWC 40723, femur section c). D, lamellar zones underlying smooth surface shown in B (FWC 40583, femur section c). Scale bars: A, B = 1 cm; C, D = 919 µm.