Opinions from G. A. Cooper and R. E. Grant 1969
- 'Acosarina dorsisulcata belongs to Acosarina'
- 'Acritosia magna belongs to Acritosia'
- 'Alexenia parvispinosa is recombined as Thamnosia parvispinosa'
- 'Amphipella arcaria belongs to Amphipella'
- 'Anemonaria inflata belongs to Anemonaria'
- 'Anomaloria anomala belongs to Anomaloria'
- 'Camarophoria bisulcata is recombined as Bryorhynchus bisulcatum'
- 'Chonetes hessensis is recombined as Rugaria hessensis'
- 'Chonetinetes reversus belongs to Chonetinetes'
- 'Collumatus solitarius belongs to Collumatus'
- 'Cyclacantharia kingorum belongs to Cyclacantharia'
- 'Dasysaria undulata belongs to Dasysaria'
- 'Dictyoclostus welleri belongs to Dictyoclostus' according to King 1938
- 'Divaricosta squarrosa belongs to Divaricosta'
- 'Goniarina pyelodes belongs to Goniarina'
- 'Hercosestria cribrosa belongs to Hercosestria'
- 'Lepidospirifer angulatus belongs to Lepidospirifer'
- 'Micraphelia scitula belongs to Micraphelia'
- 'Oncosarina spinicostata belongs to Oncosarina'
- 'Petasmaia expansa belongs to Petasmaia'
- 'Petasmatherus opulus belongs to Petasmatherus'
- 'Phrenophoria subcarinata belongs to Phrenophoria'
- 'Plectelasma kingi belongs to Plectelasma'
- 'Pontisia stehlii belongs to Pontisia'
- 'Rhynchonella indentata is recombined as Strigirhynchia indentata'
- 'Sarganostega transversalis belongs to Sarganostega'
- 'Sestropoma cribriferum belongs to Sestropoma'
- 'Spirifera pulchra is recombined as Xestotrema pulchrum'
- 'Squamularia guadalupensis belongs to Squamularia' according to Shumard 1859
- 'Squamularia subquadrata belongs to Squamularia' according to Girty 1909
- 'Squamularia subquadrata is recombined as Astegosia subquadrata'
- 'Tautosia fastigiata belongs to Tautosia'
- 'Texasia oblongata belongs to Texasia'
- 'Thamnosia anterospinosa belongs to Thamnosia'
- 'Tropidelasma culmenatum belongs to Tropidelasma'
- 'Undulella undulata belongs to Undulella'