https://www2.aofoundation.org/wps/portal/!ut/p/a0/04_Sj9CPykssy0xPLMnMz0vMAfGjzOKN_A0M3D2DDbz9_UMMDRyDXQ3dw9wMDAx8jfULsh0VAdAsNSU!/?BackMode=true&bone=Humerus&contentUrl=%2Fsrg%2Fpopup%2Ffurther_reading%2FPFxM2%2F15_Fx_Class.jsp&popupStyle=diagnosis&segment=Proximal&soloState=true
100% fossil !
In my opinion, could be older then Pleistocene, but I`m not sure.
In all rivers around the world you can always find single bones. The bone seems undoubtedly old but an accurate dating will be difficult and costly.
the structure of the distal part of the bone (in the pictures) is a quite similar with the humerus of a rhino. But, it should have very well-developed deltoid tuberosity and deep musculospiral groove (sulcus musculi brachialis), which related to its well-developed deltoid and brachialis muscles.
The deltoid tuberosity is very developed. I`m sorry that isn`t observed in the photos. The taphonomy and the bone density, give me the impression that is older then Quaternary, posibil Pliocene or Miocene (not sure).
Dear Bogdan,
the humerus remain you ask for is one of a rhino, it looks slender, so you may try to compare it with material of Stephanorhinus. Coelodonta i would exclude. According to the age, Pleistocene is the most suitable time range, especially concerning these rhino taxa.
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