Kabutoiwa Flora Locality (Miocene of Japan)

Where: Gunma, Japan (36.3° N, 138.8° E: paleocoordinates 37.6° N, 137.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Motojuku Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lacustrine

• Tuffacious rock.

Size class: macrofossils

Preservation: original carbon

Collection methods: surface (in situ),

Primary reference: K. Ozaki. 1991. Late Miocene and Pliocene Floras in Central Honshu, Japan. Bulletin of Kanagawa Prefectural Museam Natural Science Special Issue 1-244 [H. Sims/H. Lindon/H. Lindon]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 22755: authorized by Hallie Sims, entered by Heather Lindon on 25.06.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Schizophragma sp., Euptelea cf. polyandra, Fortunearia kabutoiwana, Deutzia cf. crenata, Euscaphis cf. japonica, Deutzia sp., Heptacodium hokianum
Euptelea cf. polyandra
Sieb. & Zucc.
Deutzia cf. crenata
Sieb. & Zucc.
Polypodiopsida
  - Osmundaceae
Osmunda cf. japonica
Angiospermae
 Laurales - Lauraceae
Neolitsea sp., ? Persea sp., Lindera paraobtusiloba
Neolitsea sp. Merrill 1906 laurel
? Persea sp. Gaertner 1805 laurel
Lindera paraobtusiloba laurel
Hu & Chaney
 Poales - Poaceae
Bambusites sp.
Bambusites sp. Ettingshausen 1886 grass
 Trochodendrales - Trochodendraceae
Tetracentron masuzawaense
Tetracentron masuzawaense
(Murai) Ozaki n. comb.
 Proteales - Sabiaceae
Meliosma cf. myriantha, Meliosma cf. tenuis
 Lamiales - Oleaceae
Fraxinus cf. miyataensis
Fraxinus cf. miyataensis ash
Huzioka & Uemura
 Lamiales - Bignoniaceae
Catalpa szei
Catalpa szei trumpet vine
Hu & Chaney
 Boraginales - Boraginaceae
Ehretia sp.
Ehretia sp. Linnaeus borage
 Dipsacales - Caprifoliaceae
Weigela sanzugawaensis, Viburnum cf. uttoensis, Viburnum cf. otukae, Lonicera sp.
Weigela sanzugawaensis honeysuckle
Huzioka & Uemura
Viburnum cf. uttoensis honeysuckle
Huzioka
Viburnum cf. otukae honeysuckle
Tanai
Lonicera sp. Linnaeus 1753 honeysuckle
 Cornales - Nyssaceae
"Magnolia cf. obovata" = Nyssa vetusta
"Magnolia cf. obovata" = Nyssa vetusta Newberry 1868 tupelo
Thunb.
 Cornales - Cornaceae
Cornus cf. miowalteri, Cornus megaphylla
Cornus cf. miowalteri dogwood
Hu & Chaney
Cornus megaphylla dogwood
Hu & Chaney
 Saxifragales - Saxifragaceae
Hydrangea cf. petiolaris, Hydrangea sp.
Hydrangea cf. petiolaris hydrangea
Sieb & Zucc.
Hydrangea sp. Linnaeus 1753 hydrangea
 Saxifragales - Haloragaceae
Myriophyllum sp.
Myriophyllum sp. Linnaeus 1753 water milfoil
 Saxifragales - Hamamelidaceae
Liquidambar miosinica
Liquidambar miosinica sweetgum
Hu & Chaney
 Ceratophyllales - Ceratophyllaceae
Ceratophyllum miodemersum
Ceratophyllum miodemersum hornwort
Hu & Chaney
Dicotyledoneae
 Ericales - Ericaceae
Rhododendron protodilatatum, Rhododendron hokiense
Rhododendron protodilatatum rhododendron
Tanai & Onoe
Rhododendron hokiense rhododendron
Ozaki
 Ericales - Styracaceae
Styrax protoobassia
Styrax protoobassia storax
Tanai & Onoe
 Ericales - Clethraceae
Clethra maximowiczii
Angiospermae
 Magnoliales - Magnoliaceae
Liriodendron honsyuensis
 Alismatales - Potamogetonaceae
Potamogeton sp.
Potamogeton sp. Linnaeus 1753 pondweed
 Rosids - Moraceae
Ficus sp.
Ficus sp. Linnaeus 1753 fig
 Sapindales - Simaroubaceae
Ailanthus yezoense
Ailanthus yezoense
Oishi & Huzioka
 Sapindales - Rutaceae
Euodia cf. rutaecarpa
Euodia cf. rutaecarpa citrus
Hock & Thom
 Sapindales - Anacardiaceae
Rhus miojavanica, Rhus miosuccedanea
Rhus miojavanica sumac
Suzuki
Rhus miosuccedanea sumac
Hu & Chaney
 Sapindales - Sapindaceae
Aesculus majus, Acer rotundatum, Acer subnikoense, Acer protomatsumurae, Acer nordenskioeldii, Acer huziokae, Acer cf. crataegifolium, Acer palaeorufinerve, ? Koelreuteria sp., Koelreuteria miointegrifoliola
Aesculus majus soapberry
(Nathorst) Tanai
Acer rotundatum maple
Huzioka
Acer subnikoense maple
Tanai & Ozaki
Acer protomatsumurae maple
Tanai
Acer nordenskioeldii maple
Nathorst
Acer huziokae maple
Tanai
Acer cf. crataegifolium maple
Sieb & Zucc
Acer palaeorufinerve Tanai and Onoe 1961 maple
Tanai & Onoe
? Koelreuteria sp. Laxmann 1772 golden rain tree
Koelreuteria miointegrifoliola golden rain tree
Hu & Chaney
 Sapindales - Meliaceae
? Cedrela sp.
? Cedrela sp. Browne 1756 mahogany
 Crossosomatales - Staphyleaceae
Staphylea cf. bumalda
Staphylea cf. bumalda bladdernut
DC
 Malvales - Tiliaceae
Tilia protojaponica, Tilia sp., Tilia kabutoiwaensis
Tilia protojaponica linden
Endo
Tilia sp. Linnaeus 1753 linden
Tilia kabutoiwaensis linden
Suzuki, Ogawa & Ibe
 Rosales - Rhamnaceae
"Berchemia miofloribunda" = Berhamniphyllum miofloribundum
"Berchemia miofloribunda" = Berhamniphyllum miofloribundum Hu and Chaney 1940 buckthorn
Hu & Chaney
 Rosales - Rosaceae
Pyrus hokiensis, Prunus protossiori, Prunus cf. apetala, Prunus sp.
Pyrus hokiensis pear
Ozaki
Prunus protossiori plum
Tanai & Onoe
Prunus cf. apetala plum
Fr. & Sav.
Prunus sp. Linnaeus 1753 plum
 Rosales - Pomaceae
Sorbus lesquereuxi, Sorbus palaeojaponica, Sorbus uzenensis
Sorbus lesquereuxi rowan
Nathorst
Sorbus palaeojaponica rowan
Murai
Sorbus uzenensis rowan
Huzioka
 Rosales -
Gleditsia miosinensis
 Rosales - Papilionaceae
Sophora miojaponica
Sophora miojaponica
Hu & Chaney
 Rosales - Ulmaceae
Ulmus protojaponica, Zelkova ungeri, Celtis nathorstii
Ulmus protojaponica elm
Tanai & Onoe
Zelkova ungeri Kovats 1865 zelkova
Kovats
Celtis nathorstii hackberry
Tanai & Onoe
 Cucurbitales - Coriariaceae
Coriaria cf. japonica
 Fagales - Betulaceae
Alnus protomaximowiczii, Alnus cf. firma, Alnus protohirsuta, Betula cf. grossa, Betula sp., Betula cf. schmidtii, Betula miomaximowicziana, Carpinus subcordata, Carpinus sp., Carpinus miocenica, Carpinus cf. nipponica, Corylus cf. heterophylla, Corylus subsieboldiana, Ostrya aizuana, Ostrya cf. japonica
Alnus cf. firma alder
Sieb & Zucc
Alnus protohirsuta alder
Endo
Betula cf. grossa birch
Sieb & Zucc
Betula sp. Linnaeus 1753 birch
Betula cf. schmidtii birch
Regel.
Betula miomaximowicziana birch
Endo ex Tanai
Carpinus subcordata hornbeam
Nathorst
Carpinus sp. Linnaeus 1753 hornbeam
Carpinus miocenica hornbeam
Tanai
Carpinus cf. nipponica hornbeam
Tanai
Corylus subsieboldiana hazel
K. Suzuki
Ostrya aizuana hophornbeam
K. Suzuki
Ostrya cf. japonica hophornbeam
Sarg.
 Fagales - Juglandaceae
Pterocarya asymmetrosa, Juglans japonica, Cyclocarya ezoana
Pterocarya asymmetrosa wingnut
Konno ex Tanai
Juglans japonica walnut
Tanai
Cyclocarya ezoana
(Tanai & N. Suzuki) Wolfe & Tanai
 Fagales - Fagaceae
Fagus stuxbergii, Fagus palaeojaponica, Castanea miocrenata, Quercus protoserrata, Quercus miocrispula, Quercus protosalicina
Fagus stuxbergii beech
(Nathorst) Tanai
Fagus palaeojaponica beech
Tanai & Onoe
Castanea miocrenata chestnut
Tanai & Onoe
Quercus protoserrata oak
Tanai & Onoe
Quercus miocrispula oak
Huzioka
Quercus protosalicina Suzuki 1959 oak
K. Suzulo
 Malpighiales - Salicaceae
Populus hokiensis, Populus sanzugawaensis, Salix akitaensis
Populus hokiensis poplar
Ozaki
Populus sanzugawaensis poplar
Huzioka & Uemura
Salix akitaensis willow
Huzioka & Uemura
 Fabales - Fabaceae
Cladrastis aniensis, Cladrastis inouei, Wisteria fallax, Pueraria miothunbergiana
Cladrastis aniensis yellowwood
Huzioka
Cladrastis inouei yellowwood
(Huzioka) Ozaki
Wisteria fallax legume
(Nathorst) Tanai & Onoe
Pueraria miothunbergiana legume
Hu & Chaney
 Vitales - Vitaceae
? Parthenocissus sp., aff. Tetrastigma sp., Vitis naumannii
? Parthenocissus sp. Planchon 1887
aff. Tetrastigma sp. Planchon 1887
Vitis naumannii grapevine
(Nathorst) Tanai
 Coniferales - Cupressaceae
Taiwania japonica
Taiwania japonica cypress
Tanai & Onoe
Pinopsida
 Pinales - Pinaceae
Tsuga miosieboldiana, Pinus miocenica, Pseudotsuga tanaii, Picea sp.
Tsuga miosieboldiana Ozaki 1974
Ozaki
Pinus miocenica Tanai 1961 pine
Tanai
Picea sp. Dietrich 1824 spruce
Bivalvia
 Actinodontida - Cycloconchidae
"Davidia kabutoiwana" = Actinodonta
"Davidia kabutoiwana" = Actinodonta clam
Ozaki