I have a question about something that I saw at a Presbyterian led funeral.

I was at a funeral recently where a husband and wife were conducting the service at a funeral home. The two are co-pastoring their Presbyterian church. When they closed the service in prayer the female pastor placed her hand over (not on) the head of the deceased and the male pastor placed his hand on the casket near the feet of the deceased. They held this position through the duration of the prayer. I have never witnessed this prior to this event. I am wondering if this is something that they did on their own initiative or is this typical with in the Presbyterian practice? Are there any Presbyterians on this site that could shed some light on this subject for me?

Thank you.