The issue with the Tumulus people adopting cremation must be seen in the context of their expansion into the Carpathian. First they pushed and largely annihilated the Encrusted Pottery people, which remains fled to the Balkans, then they pushed onwards to F?zesabony-Otomani.
They created a kind of colony with the Carpathian Tumulus culture (important site/old name Egyek) and Egyek centre influenced the remains of the Pannonian groups which were gathered in Piliny (pre-Kyjatice). Therefore Piliny is a syncretistic culture with contacts to both the Western Tumulus culture and the Eastern Otomani-Suciu de Sus people, which practised cremation. Piliny-Kyjatice is therefore the direct link between the Middle Danubian Tumulus culture and the cremating East Carpathian people (early East Otomani, Suciu de Sus and Wietenberg).
There was a fluent border from: Middle Danubian Tumulus culture -> Carpathian Tumulus culture -> Piliny -> Berkesz-Demecser -> Suciu de Sus/Lapus. Berkesz-Demecser and Lapus being the primary Pre-G?va groups.
I guess it was from this mixed Tumulus-Carpathian context that the new religious ideas being spread in the Tumulus culture sphere and this created the Urnfield phenomenon as such. There were also Greek-Mycenaean aspects involved, which too might have been transmitted by the intermediate groups to the South and East, because Suciu de Sus being noted as having close Mycenaean contacts also, for such a relatively Northern group.
They created a kind of colony with the Carpathian Tumulus culture (important site/old name Egyek) and Egyek centre influenced the remains of the Pannonian groups which were gathered in Piliny (pre-Kyjatice). Therefore Piliny is a syncretistic culture with contacts to both the Western Tumulus culture and the Eastern Otomani-Suciu de Sus people, which practised cremation. Piliny-Kyjatice is therefore the direct link between the Middle Danubian Tumulus culture and the cremating East Carpathian people (early East Otomani, Suciu de Sus and Wietenberg).
There was a fluent border from: Middle Danubian Tumulus culture -> Carpathian Tumulus culture -> Piliny -> Berkesz-Demecser -> Suciu de Sus/Lapus. Berkesz-Demecser and Lapus being the primary Pre-G?va groups.
I guess it was from this mixed Tumulus-Carpathian context that the new religious ideas being spread in the Tumulus culture sphere and this created the Urnfield phenomenon as such. There were also Greek-Mycenaean aspects involved, which too might have been transmitted by the intermediate groups to the South and East, because Suciu de Sus being noted as having close Mycenaean contacts also, for such a relatively Northern group.