Figure 6 : Long bone histology of Chongmingia zhengi gen. et sp. nov. (STM9-9).

From: A new basal bird from China with implications for morphological diversity in early birds

Figure 6

Cross sections of the right humerus (a) and right femur (b) viewed under polarized light microscopy. Abbreviations: icl, inner circumferential layer; seo, secondary osteon. Scale bars, 100 μm (a), 200 μm (b). (The photographs were taken by Min Wang).