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

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