Thank you to all who have helped me so far. Perhaps I should forget trying to place the family names and concentrate on the placement of the genera that were represented in those families. I have resolved to my satisfaction the placement of Sphenaulax, Myliusia, Ramispongia and Aphrocallistes. Still unresolved as to where to place them are the following genera: Laoceatis Casearia Plurostoma Guettardia Porospongia Verrucocoelia Sporadopyle Periplectum Any information as to where these genera are now placed would be of help. I suppose those that I am unable to have resolved I will just place as "uncertain". Sincerely, Jim Wyatt [log in to unmask] http://www.fossilnet.com Fossilnet, Inc.