Thairoplax birhombivalvis (FOSSIL) (J.R.M. Bergenhayn,1955 †)
Amblytochiton incomptus (FOSSIL) Hoare & Pojeta Jr.,2006 †
Alastega lira (FOSSIL) Cherns, 1998 †
Alastega martini (FOSSIL) Hoare & Pojeta Jr.,2006 †
Thairoplax merriami (FOSSIL) Hoare, 2000 †
Thairoplax pelta (FOSSIL) Cherns, 1998 †