Template:Hass, 1959

• Hass, W.H. 1959. Conodonts from the Chappel limestone of Texas. U.S. Geological Survey, Professional Paper 294-J: 365–400. PDF  
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Nomenclatural acts

New names (28)

• Cyrtoniodontinae
• Hindeodellinae
• Ligonodininae
• Lonchodininae
• Neoprioniodontinae
• Spathognathodontinae
• Bactrognathus communis
• Bactrognathus penehamata
• Branmehla
• Branmehla inornata (comb. nov.)
• Dollymae
• Dollymae sagittula
• Hindeodella fragilis
• Hindeodina
• Hindeodina simplaria
• Hindeodina uncata
• Ligonodina singularis
• Neoprioniodus insolitus
• Neoprioniodus lanceolatus
• Pandorinellina
• Polygnathus communis bifurcata
• Polygnathus communis carina
• Pseudopolygnathus lanceolata
• Siphonodella cooperi
• Siphonodella obsoleta
• Spathognathodus cooperi
• Spathognathodus longus
• Staurognathus anchoraria