| Acer arcticum Heer | Acer spitsbergense Schloem.-Jäg. |
| Acer inaequale Heer | Alnites macquarrii Forb. |
| Acer thulense Heer | Betula frigida Bud. |
| Acorus brachystachys Heer | Betula nanseni Bud. |
| Adiantum dicksonii Heer | Carex hyperborea Heer |
| "Aesculus" longipedunculus Schloem.-Jäg. | Carex ultima Heer |
| Alisma macrophyllum Heer | Carpinus gracilis Bud. |
| Alnus kefersteinii Goepp. | Carpinus nathorstii Bud. |
| Andromeda protogaea Ung. | Carpolithes circularis Heer |
| Asplenium johnstrupii Heer | Carpolithes minimus Heer |
| Betula macrophylla Goepp. | Carpolithes oblongus Heer |
| Betula prisca Ett. | Cercidiphyllum elegans Bud. |
| Carex anderssonii Heer | Cercidiphyllum heerii Bud. |
| Carex antiqua Heer | Cercidiphyllum lyellii Bud. |
| Carex berggrenii Heer | Cercidiphyllum nathorstii Bud. |
| Carex misella Heer | Corylopsiphyllum spitsbergianum Bud. |
| Carex noursoakensis Heer | Corylus carpinifolia Bud. |
| Carpinus grandis Ung. | Craigia bronnii (Ung.) Kvac., Buz. & Manch. |
| Carpolithes annulifer Heer | Credneria spectabilis (Heer) Koch |
| Carpolithes apiculatus Heer | cf. Dryopteris alaskana (Holl.) Wolfe |
| Carpolithes borealis Heer | Equisetum grimaldii Ren. ? |
| Carpolithes caudatus Heer | Fagopsis groenlandica (Heer) Wolfe |
| Carpolithes clavatus Heer ? | Fraxinus microptera Heer |
| Carpolithes deplanatus Heer | Ginkgo spitsbergensis Man. |
| Carpolithes funkioides Heer | Ginkgoites sp. indet. a Schloem.-Jäg. |
| Carpolithes impressus Heer | Ginkgoites sp. indet. b Schloem.-Jäg. |
| Carpolithes laeviusculus Heer | Grewiopsis lindstroemianus Bud. |
| Carpolithes lateralis Heer | Haemanthophyllum macrophyllum (Heer) Golovn. |
| Carpolithes nuculoides Heer | Haemanthophyllum nordenskioeldii (Heer) Boult. & Kvac. |
| Carpolithes oblongo-ovatus Heer | Hamamelis clarus Holl. |
| Carpolithes ovalis Heer | Hamamelis scleronervis Bud. |
| Carpolithes planiusculus Heer | Helleborites marginatus Heer |
| Carpolithes poaeformis Heer | Juglans (Carya) albula Heer |
| Carpolithes pulchellus Heer | Juniperus rigida Heer |
| Carpolithes rosaceus Heer | Macclintockia lyellii Heer |
| Carpolithes singularis Heer | Menispermites septentrionalis Holl. |
| Carpolithes tenue-striolatus Heer | Osmunda nathorstii Mill. |
| Celastrus cassinefolius Ung. | Phyllites platania (Heer) Sew. & Holtt. |
| Celastrus greithianus Heer | Platanus quercifolia Bud. |
| Cephalotaxites spetsbergensis Flor. | Planera ulmifolia Schloem.-Jäg. |
| Cercidiphyllum arcticum (Heer) Brown | Populus flabellum Newb. |
| Cercidiphyllum crenatum (Ung.) Brown | Poacites parvulus Heer |
| Coniopteris blomstrandii (Heer) Kvac. & Man. | Pteleaecarpum bronnii (Ung.) Weyl. |
| Cornus hyperborea Heer | Pterospermites spectabilis Heer |
| Cornus macrophylla Heer | "Quercus" juglandina Heer |
| Cornus orbifera Heer | Quercus juglandina Heer |
| Cornus ramosa Heer | Quercus spinulifera Heer |
| Cornus rhamnifolia O. Web. | Rubus scabriusculus Heer |
| Corylites hebridicus Sew. & Holtt. | Taiwania schaeferi Schloem.-Jäg. |
| Corylus macclurii Heer | Torellia bifida Heer |
| Corylus macquarrii (Forb.) Heer | Trochodendrocarpus arcticus (Heer) Krysht. |
| Corylus scottii Heer | Trochodendroides arctica (Heer) Berry |
| Crataegus antiqua Heer | Trochodendroides spitsbergiana Bud. |
| Crataegus carneggiana Heer | Ulmus asperrima Nath. nom. nud. |
| Crataegus glacialis Heer | Ulmus ulmifolia (Schloem.-Jäg.) Bud. |
| Crataegus oxyacanthoides Goepp. | |
| Cupressinocladus interruptus (Newb.) Schweit. | |
| Cyperacites borealis Heer | |
| Cyperites argutulus Heer | |
| Cyperites strictus Heer | |
| Cyperites trimerus Heer | |
| Cyperus arcticus Heer | |
| Cypselites incurvatus Heer | |
| Cypselites sulcatus Heer | |
| Dombeyopsis cf. lobata Ung. | |
| Elaeagnites campanulatus Heer | |
| Elatocladus campbellii (Forb.) Sew. & Holtt. | |
| Elatocladus olriki (Heer) Bell | |
| Ephedrites sotzkianus Ung. | |
| Equisetum arcticum Heer | |
| Equisetites nordenskioeldii Nath. nom. nud. | |
| Fagus deucalionis Ung. | |
| Filicites deperditus Heer | |
| Fragaria antiqua Heer | |
| Ginkgo adiantoides (Ung.) Heer | |
| Glyptostrobus europaeus (Brgn.) Ung. | |
| Glyptostrobus ungeri Heer | |
| Glyptostrobus europaeus var. ungeri Heer | |
| Glyptostrobus nordenskioeldii (Heer) Br. | |
| Grewia crenata Heer | |
| Grewia crenulata Heer | |
| Grewia obovata Heer | |
| Grewiopsis pterospermoides Bud. | |
| Haemanthophyllum nordenskioeldii (Heer) Boult. & Kvac. | |
| Hedera macclurii Heer | |
| Helleborites inaequalis Heer | |
| Iridium groenlandicum Heer | |
| Iris latifolia Heer | |
| Juncus antiquus Heer | |
| "Koelreuteria" borealis Heer | |
| Lastraea stiriaca (Ung.) Heer | |
| Leguminosites thulensis Heer | |
| Leguminosites vicioides Heer | |
| Libocedrus gracilis Heer | |
| Libocedrus sabiniana Heer | |
| "Macclintockia" tenera Heer | |
| Macclintockia dentata Heer | |
| Magnolia nordenskioeldii Heer | |
| Magnolia regalis Heer | |
| Majanthemophyllum boreale Heer | |
| Metasequoia occidentalis (Newb.) Chan. | |
| Microconium beringianum Golown. | |
| Muensteria deplanata Heer | |
| Muscites berggrenii Heer | |
| Najas striata Heer | |
| Nordenskioeldia borealis Heer | |
| Nymphaea arctica Heer | |
| Nymphaeites thulensis Heer | |
| Nyssa arctica Heer | |
| Nyssa europaea Ung. | |
| Nyssa reticulata Heer | |
| Nyssidium arcticum (Heer) Ilj. | |
| Nyssidium crassum Heer | |
| Nyssidium ekmanii Heer | |
| Nyssidium fusiforme Heer | |
| Nyssidium lanceolatum Heer | |
| Nyssidium oblongum Heer | |
| Osmunda macrophylla Pen. | |
| Osmunda spetsbergensis Nath. nom. nud. | |
| Paliurus colombi Heer | |
| Parataxodium wigginsii Arn. & Lowt. | |
| Parrotia pristina Ett. | |
| Phragmites oeningensis A. Br. | |
| Phyllites hyperboreus Heer | |
| Pinus abies (L.) Heer | |
| Pinus cycloptera Sap. | |
| Pinus dicksoniana Heer | |
| Pinus hyperborea Heer | |
| Pinus impressa Heer | |
| Pinus lovenii Heer | |
| Pinus macrosperma Heer | |
| Pinus malmgrenii Heer | |
| Pinus montana Mill. | |
| Pinus polaris Heer | |
| Pinus stenoptera Heer | |
| Pinus ungeri Endl. | |
| Platanus aceroides Goepp. | |
| Poacites argutus Heer | |
| Poacites avenaceus Heer | |
| Poacites bilineatus Heer | |
| Poacites effossus Heer | |
| Poacites friesianus Heer | |
| Poacites hordeiformis Heer | |
| Poacites laevis A. Br. | |
| Poacites laeviusculus Heer | |
| Poacites lepidulus Heer | |
| Poacites sulcatus Heer | |
| Poacites torellii Heer | |
| Poacites trilineatus Heer | |
| Polygonum ottersianum Heer | |
| Populus arctica Heer | |
| Populus hookeri Heer | |
| Populus balsamoides Goepp. | |
| Populus curvidens Heer | |
| Populus retusa Heer | |
| Populus richardsonii Heer | |
| Populus zaddachii Heer | |
| Potamogeton nordenskioeldii Heer | |
| Prunus staratschenii Heer | |
| Pseudolarix septentrionalis Schloem.-Jäg. | |
| Quercus elaena Ung. | |
| Quercus groenlandica Heer | |
| Quercus lyellii Heer | |
| Quercus platania Heer | |
| Quercus venosa Goepp. | |
| Rhamnus eridani Ung. | |
| Sagittaria difficilis Heer | |
| Sagittaria hyperborea Heer | |
| Salix macrophylla Heer | |
| Salix raeana Heer | |
| Salix varians Heer | |
| Salsola arctica Heer | |
| Sequoia brevifolia Heer | |
| Sequoia disticha Heer | |
| Sequoia langsdorfii (Brgn.) Heer | |
| Sequoia nordenskioeldii Heer | |
| Sorbus grandifolia Heer | |
| Sparganium crassum Heer | |
| Sphaeria annulifera Heer | |
| Sphaeria pinicola Heer | |
| Sphenopteris blomstrandii Heer | |
| Sphenopteris johnstrupii Heer | |
| Taxites angustifolia Flor. | |
| Taxites obtusiuscula Flor. | |
| Taxites olriki Heer | |
| Taxodium angustifolium Heer | |
| Taxodium distichum miocenum Heer | |
| Taxodium dubium (Sternb.) Heer | |
| Taxodium tinajorum Heer | |
| Thuja ehrenswaerdi (Heer) Heer | |
| Thuites ehrenswaerdi Heer | |
| "Tilia" malmgrenii Heer | |
| Torellia rigida Heer | |
| Trochodendroides crenulata (Heer) Boult. & Kvac. | |
| Trochodendroides richardsonii (Heer) Krysht. | |
| Ulmites ulmifolius (Schloem.-Jäg.) Kvac., Man. & Boult. | |
| Ulmus braunii Heer | |
| Ushia olafsenii (Heer) Boult. & Kvac. | |
| Viburnum macrospermum Heer | |
| Viburnum nordenskioeldii Heer | |
| Viburnum whymperi Heer | |
| Zizyphoides flabellum (Newb.) Crane, Manch. & Dilch. | |
| Alnites macquarrii Forb. | |
| Betula frigida Bud. | |
| Betula nanseni Bud. | |
| Carex hyperborea Heer | |
| Carex ultima Heer | |
| Carpinus gracilis Bud. | |
| Carpinus nathorstii Bud. | |
| Carpolithes circularis Heer | |
| Carpolithes minimus Heer | |
| Carpolithes oblongus Heer | |
| Cercidiphyllum elegans Bud. | |
| Cercidiphyllum heerii Bud. | |
| Cercidiphyllum lyellii Bud. | |
| Cercidiphyllum nathorstii Bud. | |
| Corylopsiphyllum spitsbergianum Bud. | |
| Corylus carpinifolia Bud. | |
| Craigia bronnii (Ung.) Kvac., Buz. & Manch. | |
| Credneria spectabilis (Heer) Koch | |
| cf. Dryopteris alaskana (Holl.) Wolfe | |
| Equisetum grimaldii Ren. ? | |
| Fagopsis groenlandica (Heer) Wolfe | |
| Fraxinus microptera Heer | |
| Ginkgo spitsbergensis Man. | |
| Ginkgoites sp. indet. a Schloem.-Jäg. | |
| Ginkgoites sp. indet. b Schloem.-Jäg. | |
| Grewiopsis lindstroemianus Bud. | |
| Haemanthophyllum macrophyllum (Heer) Golovn. | |
| Haemanthophyllum nordenskioeldii (Heer) Boult. & Kvac. | |
| Hamamelis clarus Holl. | |
| Hamamelis scleronervis Bud. | |
| Helleborites marginatus Heer | |
| Juglans (Carya) albula Heer | |
| Juniperus rigida Heer | |
| Macclintockia lyellii Heer | |
| Menispermites septentrionalis Holl. | |
| Osmunda nathorstii Mill. | |
| Phyllites platania (Heer) Sew. & Holtt. | |
| Platanus quercifolia Bud. | |
| Planera ulmifolia Schloem.-Jäg. | |
| Populus flabellum Newb. | |
| Poacites parvulus Heer | |
| Pteleaecarpum bronnii (Ung.) Weyl. | |
| Pterospermites spectabilis Heer | |
| "Quercus" juglandina Heer | |
| Quercus juglandina Heer | |
| Quercus spinulifera Heer | |
| Rubus scabriusculus Heer | |
| Taiwania schaeferi Schloem.-Jäg. | |
| Torellia bifida Heer | |
| Trochodendrocarpus arcticus (Heer) Krysht. | |
| Trochodendroides arctica (Heer) Berry | |
| Trochodendroides spitsbergiana Bud. | |
| Ulmus asperrima Nath. nom. nud. | |
| Ulmus ulmifolia (Schloem.-Jäg | |
