Opinions from C. A. Lapasha and C. N. Miller 1985
- 'Acrostichopteris belongs to Filicales'
- 'Acrostichopteris longipennis belongs to Acrostichopteris'
- 'Arcellites belongs to Marsileales'
- 'Bennettitales belongs to Cycadopsida'
- 'Caytoniaceae belongs to Caytoniales'
- 'Caytoniales belongs to Pteridospermopsida'
- 'Cladophlebis belongs to Filicales'
- 'Cladophlebis virginiensis belongs to Cladophlebis'
- 'Coniopteris belongs to Thyrsopterideae'
- 'Cycadopsida belongs to Cycadophyta'
- 'Dicksoniaceae belongs to Filicales'
- 'Diettertia belongs to Jungermanniales'
- 'Diettertia montanensis belongs to Diettertia'
- 'Dipteridaceae belongs to Filicales'
- 'Equisetaceae belongs to Equisetales'
- 'Equisetales belongs to Sphenopsida'
- 'Equisetum belongs to Equisetaceae'
- 'Equisetum cascadensis belongs to Equisetum'
- 'Equisetum montanense [misspelled as Equisetum montanensis] belongs to Equisetum'
- 'Filicales belongs to Filicopsida'
- 'Filicopsida belongs to Pteridophyta'
- 'Ginkgo belongs to Ginkgoaceae'
- 'Ginkgo pluripartita belongs to Ginkgo'
- 'Ginkgoaceae belongs to Ginkgoales'
- 'Ginkgoales belongs to Coniferopsida'
- 'Ginkgoales belongs to Ginkgophyta'
- 'Hausmannia belongs to Dipteridaceae'
- 'Hausmannia montanensis belongs to Hausmannia'
- 'Hepaticae belongs to Bryophyta'
- 'Isoetales belongs to Lycopsida'
- 'Jungermanniales belongs to Hepaticae'
- 'Klukia belongs to Schizaeaceae'
- 'Klukia canadensis belongs to Klukia'
- 'Lycopsida belongs to Lycophyta'
- 'Marchantiaceae belongs to Marchantiales'
- 'Marchantiales belongs to Hepaticae'
- 'Marchantiolites belongs to Marchantiaceae'
- 'Marsileales belongs to Filicopsida'
- 'Metzgeriales belongs to Hepaticae'
- 'Metzgeriites belongs to Metzgeriales'
- 'Minerisporites belongs to Isoetales'
- 'Parazollopsis belongs to Salviniales'
- 'Pseudocycas belongs to Bennettitales'
- 'Pseudocycas douglasii belongs to Pseudocycas'
- 'Pteridospermopsida belongs to Pteridospermophyta'
- 'Sagenopteris belongs to Caytoniaceae'
- 'Sagenopteris elliptica belongs to Sagenopteris'
- 'Sagenopteris mclearni belongs to Sagenopteris'
- 'Sagenopteris williamsii belongs to Sagenopteris'
- 'Schizaeaceae belongs to Filicales'
- 'Sphenopsida belongs to Sphenophyta'
- 'Sphenopteris belongs to Filicales'
- 'Sphenopteris hymenophylloides is recombined as Coniopteris hymenophylloides'
- 'Thyrsopterideae belongs to Dicksoniaceae'
- 'Zamites belongs to Bennettitales'
- 'Zamites arcticus belongs to Zamites'