(UTC) 

 ::An equally good case could be made for merging pseudoelementary class with reduct.  The notions of elementary class and reduct are orthogonal, and the several examples of pseudoelementary classes in pseudoelementary class arguably illustrate the concept of reduct better than they do the concept of elementary class.  I would be inclined to leave things stand as they are.  If no one has any more concrete proposal I'll remove the tags suggesting the merge at some point.    15:36, 18 August 2009