The bone location in this image is shown within the red circle, the gravel beds are outlined in yellow just below.
4 - The bone at first looked fragile, but after a wash and rub i found it to be heavy and hard, also it has the usual very high shine.
8 - These two rib pieces were excavated close to the scapula piece, again they have the high shine.
10 - This image shows the gravel bed outlined in yellow, and the red - brown plastic clay below outlined in red.
11 - This image shows the gravel bed outlined in red, then two suspended gravel pockets outlined in yellow in the stoneless sandy deposit above, then the stoneless alluvium above the black outline.