| Acer arcticum Heer | Acer thulense Heer | |
| Crataegus glacialis Heer | | |
| Hedera macclurii Heer p.p. | Kvacek et al. 1994 | |
| Acer spitsbergense Schloem.-Jäg. | Acer | |
| Phyllites | | |
| cf. Vitis olriki Heer | Schloemer-Jäger 1958 | |
| "Aesculus" longipedunculus Schloem.-Jäg. | Aesculus longipedunculus Schloem.-Jäg. | |
| Aesculus longipetiolatus Schloem.-Jäg. | Kvacek et al. 1994 | |
| Celastrinites septentrionalis (Krysht.) Golovn. | "Salix" | Golovneva 1994 |
| Coniopteris blomstrandii (Heer) Kvac. & Man. | Sphenopteris blomstrandii Heer | |
| Dennstaedtia blomstrandii (Heer) Holl. | Kvacek & Manum 1993 | |
| "Cornus" hyperborea Heer | Cornus hyperborea Heer | Kvacek et al. 1994 |
| Corylites hebridicus Sew. & Holtt. | Alnus keferstenii Goepp. | |
| Betula macrophylla Goepp. | | |
| Betula prisca Ett. | | |
| Corylus carpinifolia Bud. | | |
| Corylus macquarrii Forbes | | |
| Corylus macquarrii var. microdonta Heer | | |
| Corylus scotii Heer | | |
| Fagus deucaulionis Ung. | | |
| Tilia malmgrenii Heer | | |
| Ulmus braunii Heer | Kvacek et al. 1994 | |
| Craigia bronnii (Ung.) Kvac., Buz. & Manch. | Pteleaecarpum bronnii (Ung.) Weyl. | Kvacek et al. 1994 |
| Craspedodromophyllum sp. div. | Alnus keferstenii Goepp. | |
| Carpinus grandis Bud. | | |
| Sorbus grandifolia Heer | Kvacek et al. 1994 | |
| Cupressinocladus interruptus (Newb.) Schweit. | Libocedrus gracilis Heer | |
| Libocedrus sabiniana Heer | Schweitzer 1975 | |
| Dombeyopsis sp. | Populus richardsoni Heer | Kvacek et al. 1994 |
| Elatocaldus olriki (Heer) Bell | Metasequoia occidentalis (Newb.) Chan. p.p. | Schloemer-Jäger 1958 |
| Equisetum arcticum Heer complex | Equisetites nordenskioeldii Nath. nom. nud. | Kvacek & Manum 1993 |
| Fagopsis groenlandica (Heer) Wolfe | Quercus groenlandica Heer | Kvacek et al. 1994 |
| Glyptostrobus nordenskioeldii (Heer) Br. | Glyptostrobus ungeri Heer | |
| Sequoia nordenskioeldii Heer | | |
| Taxodium distichum miocenum Heer p.p. | Schweitzer 1975 | |
| Haemanthophyllum nordenskioeldii (Heer) Boult. & Kvac. | Potamogeton nordenskioeldii Heer | |
| Alisma macrophyllum Heer | | |
| Haemanthophyllum macrophyllum (Heer) Golovn. | | |
| Haemanthophyllum nordenskioeldii (Heer) Boult. & Kvac. | Kvacek et al. 1994 | |
| ? Juglandaceae gen. et sp. | Salix varians Goepp. | Kvacek et al. 1994 |
| "Koelreuteria" borealis Heer | Koelreuteria borealis Heer | Kvacek et al. 1994 |
| Macclintockia dentata Heer | Macclintockia lyellii Heer | Kvacek et al. 1994 |
| "Macclintockia" tenera Heer | Macclintockia tenera Heer | Kvacek et al. 1994 |
| "Majanthemophyllum" boreale Heer | Majanthemophyllum boreale Heer | Kvacek et al. 1994 |
| Metasequoia occidentalis (Newb.) Chan. | Sequoia brevifolia Heer | |
| Sequoia disticha Heer | | |
| Sequoia langsdorfii (Brgn.) Heer | | |
| Sequoia nordenskioeldii Heer | | |
| Taxites olriki p.p. Heer | | |
| Taxodium distichum miocenum Heer p.p. | | |
| Taxodium dubium (Sternb.) Heer | | |
| Taxodium tinajorum Heer | Schweitzer 1975 | |
| Metasequoia occidentalis (Newb.) Chan. p.p. | Elatocladus (Taxites?) olriki (Heer) Bell | Schloemer-Jäger 1958 |
| Nordenskioeldia borealis Heer | Acorus brachystachys Heer | Kvacek & Manum 1997 |
| | Nymphaea arctica Heer | Kvacek et al. 1994 |
| Nyssidium arcticum (Heer) Ilj. | Nyssa arctica Heer | |
| Trochodendrocarpus arcticus (Heer) Krysht. | Kvacek et al. 1994 | |
| Nyssidium ekmanii Heer | Nyssidium crassum Heer | |
| Nyssidium fusiforme Heer | | |
| Nyssidium lanceolatum Heer | | |
| Nyssidium oblongum Heer | | |
| Trochodendrocarpus arcticus (Heer) Krysht. | Kvacek et al. 1994 | |
| Osmunda macrophylla Penh. | Osmunda spetsbergensis Nath. nom. nud. | Kvacek & Manum 1993 |
| Osmunda nathorstii Mill. | Osmundites spetsbergensis (Nath.) Kids. & Gwyn.-Vaugh. | Kvacek & Manum 1993 |
| Parataxodium wigginsii Arn. & Lowt. | Taxodium distichum miocenum Heer p.p. | Schweitzer 1975 |
| Platanus sp. | Platanus aceroides Goepp. p.p. | Kvacek et al. 1994 |
| Pseudolarix septentrionalis Schloem.-Jäg. | Ephedrites sotzkianus Ung. p.p. | |
| Pinus abies (L.) Heer | | |
| Pinus impressa Heer | | |
| Pinus ungeri Endl. | | |
| Taxites olriki Heer p.p. | Schloemer-Jäger 1958, Schweitzer 1975 | |
| "Quercus" juglandina Heer | Quercus juglandina Heer | Kvacek et al. 1994 |
| Sequoia langsdorfii (Brgn.) Heer | Sequoia brevifolia Heer | Schweitzer 1975 |
| Taxodium dubium (Sternb.) Heer | Taxodium angustifolium Heer | |
| Taxodium distichum miocenum Heer | Schweitzer 1975 | |
| "Tilia" malmgrenii Heer | Quercus spinulifera Heer | |
| Tilia malmgrenii Heer p.p. | Kvacek et al. 1994 | |
| Trochodendroides crenulata (Heer) Boult. & Kvac. | Cercidiphyllum elegans Bud. | |
| Cercidiphyllum lyellii Bud. | | |
| Grewia crenata Heer p.p. | | |
| Grewia crenulata Heer | | |
| Grewia obovata Heer | | |
| Hedera macclurii Heer p.p. | | |
| Populus zaddachii Heer | | |
| Trochodendroides spitsbergiana Bud. | Kvacek et al. 1994 | |
| Trochodendroides richardsonii (Heer) Krysht. | Cercidiphyllum crenatum (Ung.) Br. p.p. | |
| Cercidiphyllum heerii Bud. | | |
| Cercidiphyllum nathorstii Bud. | | |
| Hedera macclurii Heer p.p. | | |
| Populus richardsonii Heer | Kvacek et al. 1994 | |
| Ulmites ulmifolius (Schloem.-Jäg.) Kvac., Man. & Boult. | Planera ulmifolia Schloem.-Jäg. | |
| Salix macrophylla Heer p.p. | | |
| Ulmus asperrima Nath. nom. nud. | | |
| Ulmus ulmifolia (Schloem.-Jäg.) Bud. | Kvacek et al. 1994 | |
| Ushia olafsenii (Heer) Boult. & Kvac. | Alnus keferstenii Goepp. | |
| Betula prisca Ett. | | |
| Corylopsiphyllum spitsbergianum Bud. | | |
| Crataegus antiqua Heer | | |
| Credneria spectabilis (Heer) Koch | | |
| Grewiopsis lindstroemianus Bud. | | |
| Hamamelis clarus Holl. | | |
| Hamamelis scleronervis Bud. | | |
| Phyllites platania (Heer) Sew. & Holtt. | | |
| Platanus quercifolia Bud. | | |
| Quercus olafsenii Heer | | |
| Quercus platania Heer | | |
| Quercus steenstrupiana Heer | Kvacek et al. 1994 | |
| Zizyphoides flabellum (Newb.) Crane, Manch. & Dilch. | Cercidiphyllum arcticum (Heer) Brown | |
| Hedera macclurii Heer | | |
| Menispermites septentrionalis Holl. | | |
| Nymphaea arctica Heer | | |
| Populus arctica Heer | | |
| Populus flabellum Newb. | | |
| Populus hookeri Heer | | |
| Populus retusa Heer | | |
| Trochodendroides arctica (Heer) Berry | Kvacek et al. 1994 | |
