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In Table 1, are the original data provided by John Howe (2 sheets).
Scatter diagrams (Fig.1 and 2) show that Natural Trap humeri are longer than in extant E. hemionus onager (Fig.1) as well as wider and flatter (Fig.2).
As in other limb bones, a few specimens seem larger, possibly because they come from another level of Natural Trap. One is shorter (nÂ° 51884) but not otherwise different.
Statistics of the main, gracile, group are in Table 2 ; Simpson’s diagrams, bone by bone, in Fig.3.