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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: Systemic distribution of medullary bone in the avian skeleton: ground truthing criteria for the identification of reproductive tissues in extinct Avemetatarsalia

Fig. 3

Overall distribution and prevalence of MB in the different regions of the avian skeleton. These results are based on our dataset comprising 38 specimens representative of extant bird diversity. The color-coding refers to the proportion of individuals in our sample (expressed in %) that presented MB in a given skeletal element. For example, 30 to 40% of the studied specimens presented MB in the humerus. The presence of MB was not investigated in the manual phalanges (in white). The skeletal scheme used here is representative of the general bird skeleton depicting all considered elements, regardless of the species

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