Another Brain Puzzle

Over in the Puzzles forum, DM lists a brain teaser which is simple enough (at least for my brain) to grasp yet challenging enough to be fun.

WHO IS ON THE RIGHT? A PUZZLE!

Four married couples were sitting around a circular table.
No man was sitting next to his wife or another man.
Mr Coster was not sitting next to Mrs Black.
Mr Black was not sitting next to Mrs Dell.
Moving clockwise around the table, the women were seated in the same order of their names as the men.
Mrs Archer was sitting on the right of Mr Black.

Who was sitting on the right of Mrs. Coster?

courtesy:world puzzles

For those too lazy (or lack the time) to solve this on their own, you can find the answer over here.