Itahana Flora Locality Ga: Tortonian - Messinian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
1 specimen
Angiospermae - Alismatales - Potamogetonaceae
70 specimens
Angiospermae - Poales - Cyperaceae
6 specimens
Angiospermae - Saxifragales - Hamamelidaceae
1 specimen
3 specimens
Angiospermae - Cornales - Cornaceae
1 specimen
Angiospermae - Laurales - Lauraceae
1 specimen
Angiospermae - Moraceae
68 specimens
Angiospermae - Sapindales - Sapindaceae
1 specimen
Angiospermae - Rosales - Rhamnaceae
Berchemia miofloribunda Hu and Chaney 1940
1 specimen
Angiospermae - Fabales - Fabaceae
2 specimens
Lespedeza sp. Michaux 1803
4 specimens
9 specimens
Angiospermae - Malpighiales - Salicaceae
31 specimens
2 specimens
Salix cf. integra Göppert 1852
31 specimens
Coniferales - Cupressaceae
Taxodium dubium (Sternberg 1824)
2 specimens
18 specimens
see common names

Geography
Country:Japan State/province:Gunma
Coordinates: 36.5° North, 139.0° East (view map)
Paleocoordinates:36.1° North, 137.4° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Miocene
Stage: Tortonian - Messinian 10 m.y. bin: Cenozoic 6
*Period:Late/Upper Tertiary *Epoch:Late/Upper Miocene - Early/Lower Pliocene
Key time interval: Tortonian - Messinian
Age range of interval: 11.63 - 5.333 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Tomioka Formation:Itahana
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: conglomerate
Lithology description: The exposure with about 10 m thickness is composed of two cyclothems of conglomerate to fine grained rock, and is in the middle upper part of the upper member.
Environment:marine indet.
Taphonomy
Modes of preservation:original carbon
Size of fossils:macrofossils
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:21250
Authorizer:H. Sims Enterer:H. Lindon
Modifier:J. Cassara Research group:paleobotany
Created:2002-06-22 08:19:27 Last modified:2025-02-22 15:12:02
Access level:the public Released:2002-06-22 08:19:27
Creative Commons license:CC0
Reference information

Primary reference:
6513. 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]