The smallest of the subatomic particles
A bigger subatomic particle
An atom of an element
I'm pretty sure that Yuniran, Daburan, and Rankurusu are based off of cells rather than subatomic particles. Might I suggest these names?
Yuniran: Psyell (psychic+cell) I'm considering whether I should drop the 'y' or not...
Daburan: Psytosis (psychic+mitosis) Mitosis is the process that cells use to multiply, for those who don't know/remember
Rankurusu: Psytoplasm (psychic+cytoplasm) Cytoplasm is the liquid that the cell's organelles float around in.
For Desukan, I came up with the name Sarcophagold. Desukan is a sarcophagus, and, according to Bulbapedia, it loves to eat gold and it's made of gold. Sarcanubis is okay, but Lucario has more of an Anubis-like appearance as opposed to Desukan.
On a more positive note, I love the name Tarantesla.