Painted Hills: Early/Lower Oligocene, Oregon

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Unknown dicotyledonous sp. 4 leaf
Unknown dicotyledonous sp. 11 leaf
Unknown monocotyledonous sp. leaf
Craigia oregonensis seed/fruit
Polypodiopsida - Equisetales - Equisetaceae
Equisetum sp. axis Linnaeus 1753
Coniferales - Cupressaceae
Metasequoia sp. multi organs Miki 1941
Cunninghamia chaneyi multi organs
Angiospermae - Fagales - Juglandaceae
Palaeocarya cf. olsonii seed/fruit
Angiospermae - Fagales - Fagaceae
Quercus sp. seed/fruit Linnaeus 1753
Quercus berryi leaf Trelease 1918
Quercus consimilis leaf Newberry 1883
Fagus pacifica leaf, seed/fruit
Angiospermae - Fagales - Betulaceae
Alnus newberryi leaf
Alnus sp. multi organs Miller 1754
Betula angustifolia multi organs Newberry 1882
Angiospermae - Fabales - Fabaceae
Cercis maurerae seed/fruit
Leguminosae gen. et sp. indet. leaf
synonym of Fabaceae
Micropodium ovatum seed/fruit
Cladrastis oregonensis leaf
Angiospermae - Rosales - Ulmaceae
Ulmus sp. 1 leaf Linnaeus 1753
Ulmus speciosa leaf Newberry 1883
Angiospermae - Rosales - Pomaceae
Crataegus merriamii leaf
Angiospermae - Rosales - Rosaceae
Rosa sp. seed/fruit Linnaeus 1753
Rosa hilliae leaf Lesquereux 1883
Angiospermae - Sapindales - Sapindaceae
Acer osmontii leaf, seed/fruit
Acer sp. A seed/fruit Linnaeus 1753
Acer sp. C seed/fruit Linnaeus 1753
Acer cranei seed/fruit Wolfe and Tanai 1987
Dipteronia sp. seed/fruit Oliver 1889
Angiospermae - Sapindales - Anacardiaceae
Rhus lesquereuxii leaf Knowlton and Cockerell 1919
Angiospermae - Malvales - Tiliaceae
Tilia aspera leaf
Angiospermae - Saxifragales - Hamamelidaceae
Liquidambar sp. leaf Linnaeus 1753
Angiospermae - Saxifragales - Cercidiphyllaceae
Cercidiphyllum crenatum leaf Brown 1935
Angiospermae - Saxifragales - Saxifragaceae
Hydrangea sp. flower Linnaeus 1753
Angiospermae - Ranunculales - Menispermaceae
cf. Menispermum sp. Linnaeus 1753
Angiospermae - Ranunculales - Berberidaceae
Mahonia simplex leaf
Angiospermae - Solanales - Solanaceae
Florissantia speirii seed/fruit, flower Manchester 1992
Angiospermae - Proteales - Platanaceae
Platanus condonii leaf
Platanus exaspera leaf
Platanus sp. multi organs Linnaeus 1753
unclassified
Juglandiphyllites cryptatus leaf
Plafkeria obliquifolia leaf
see common names

Geography
Country:United States State/province:Oregon County:Wheeler
Coordinates: 44.6° North, 120.3° West (view map)
Paleocoordinates:44.3° North, 109.5° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
Key time interval:Early/Lower Oligocene
Age range of interval:33.90000 - 27.82000 m.y. ago
Stratigraphy
Formation:John Day
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: tuff
Lithology description: "fine-grained, bedded lacustrine tuffs"
Environment:lacustrine indet.
Taphonomy
Modes of preservation:mold/impression,original carbon
Size of fossils:mesofossils
Preservation of anatomical detail:good
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:all microfossils,some macrofossils
Collection methods:bulk,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: "assemblage is dominated by Alnus, Betula, Quercus, and Metasequoia....apparent absence of Asterocarpinus fruits and Paracarpinus leaves in this assemblage contrasts with their presence in all other Bridge Creek assemblages examined in this study."
Metadata
Also known as:Bridge Creek Flora
Database number:35220
Authorizer:B. Tiffney Enterer:J. Fosdick
Modifier:J. Fosdick Research group:paleobotany
Created:2003-11-18 13:44:10 Last modified:2003-11-18 15:44:10
Access level:database members Released:2004-11-18 13:44:10
Creative Commons license:CC BY
Reference information

Primary reference:
2582. H. W. Meyer and S. R. Manchester. 1997. The Oligocene Bridge Creek flora of the John Day Formation, Oregon. University of California Publications in Geological Sciences 141:1-195 [J. Alroy/J. Alroy/H. Wang]