Inkyoyama Hill, Izumi (Miocene of Japan)

Where: Gifu, Japan (35.4° N, 137.2° E: paleocoordinates 38.0° N, 134.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yamanouchi Member (Akeyo Formation), Miocene (23.0 - 5.3 Ma)

• Collected from beds ~5m above Palaeoparadoxia tabatai (Collection No. 91465) (Ozaki 1974)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; tuffaceous sandstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Geological Institute, Yokohama National University, Yokohama, Japan

Primary reference: K. Ozaki. 1974. Miocene floras of the Pacific side of central Japan (I) Inkyoyama flora. Science Reports of the Yokohama National University, Section II 21:1-21 [B. Allen/B. Allen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 222791: authorized by Bethany Allen, entered by Bethany Allen on 23.10.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

 Coniferales - Cupressaceae
Metasequoia occidentalis Newberry 1863 dawn redwood
cf. Cunninghamia protokonishii Tanai and Onoe 1961 cypress
Chamaecyparis shikamana n. sp. Ozaki 1974 cypress
GYNU-CMP-1067 (holotype)
Pinopsida
 Pinales - Pinaceae
Pseudotsuga huziokana n. sp. Ozaki 1974
GYNU-CMP-1064 (holotype)
Tsuga miosieboldiana n. sp. Ozaki 1974
GYNU-CMP-1056 (holotype)
Keteleeria ezoana Tanai 1961
Pinus miocenica Tanai 1961 pine
Angiospermae
 Sapindales - Sapindaceae
Acer cf. nordenskioeldi Nathorst 1883 maple
Acer tokiensis n. sp. Ozaki 1974 maple
GYNU-CMP-1036 (holotype)
 Malpighiales - Euphorbiaceae
Mallotus protojaponicus n. sp. Ozaki 1974 spurge
GYNU-CMP-1037 (holotype)
 Fabales - Fabaceae
Millettia notoensis Ishida 1970 legume
Pueraria tanaii n. sp. Ozaki 1974 legume
GYNU-CMP-1029 (holotype)
 Fagales - Betulaceae
Carpinus subyedoensis Kon'no 1931 hornbeam
 Fagales - Fagaceae
Quercus subvariabilis Tanai 1955 oak
Quercus protosalicina Suzuki 1959 oak
 Rosales - Ulmaceae
Ulmus sp. Linnaeus 1753 elm
 Magnoliales - Magnoliaceae
Magnolia miocenica Hu and Chaney 1938 magnolia
 Garryales - Eucommiaceae
Eucommia nipponica n. sp. Ozaki 1974
GYNU-CMP-1027 (holotype)
 Buxales - Buxaceae
Buxus protojaponica Tanai and Onoe 1961 boxwood
 Poales - Poaceae
cf. Phragmites sp. Adanson 1763 common reed
 Poales - Cyperaceae
cf. Carex sp. Linnaeus 1753 sedge