Naveta des Tudons (http://www.menorcaweb.com/reports/archaeological-sites/naveta-des-tudons/)
The name comes from modern scholars, due to their appearance
of an upturned boat. We do not know what the local people called them as we
have found no written language from this period on the island. These structures
contained two chambers an upper and a lower chamber. The deceased individuals
were first wrapped in a shroud with a bone button and placed in the lower
chamber. When this chamber began to fill up the bodies that had skeletonized
were moved to the upper chamber. So far this sounds like many other cultures
burial practices right? Megalithic funerary monuments, collective burials, and
secondary burials are all funerary practices seen in a variety of different
culture; here is where it gets weird. When the skeletonized remains were moved
to the upper chamber they were distributed into piles according to body part
such as skulls in one location, long bones in another, pelves in another, etc.
The distribution of remains in this manner is as far as I know unique to this
culture (although if anyone has other information I would be pleased to hear
it!). Scholars have no idea why the pre-Talaiotic people separated remains in
this manner and we likely will never know why but it certainly is interesting
to ponder on.