Mucrospiriferidae
Mucrospirifer
Mucrospirifer alpenensis
Mucrospirifer arkonensis
Mucrospirifer attenuatus
Mucrospirifer consobrinus
Mucrospirifer cooperi
Mucrospirifer grabaui
Mucrospirifer latus
Mucrospirifer mucronatus
Mucrospirifer multiplicatus
Mucrospirifer profundus
Mucrospirifer prolificus
Mucrospirifer thedfordensis
Tylothyris
Tylothyris bimesialis
Tylothyris subvaricosa umbonata