Eastgate Flora: Burdigalian, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Pinopsida - Pinales - Pinaceae
Pinus sturgisii multi organs
Pinus alvordensis seed/fruit
Pinus balfouroides seed/fruit
Tsuga mertensioides seed/fruit
Abies laticarpus multi organs
Abies concoloroides multi organs Brown 1940
Pseudotsuga sonomensis seed/fruit
Larix nevadensis leaf
Larix cassiana leaf
Picea lahontense seed/fruit
Picea sonomensis seed/fruit
Coniferales - Cupressaceae
Chamaecyparis cordillerae multi organs
Juniperus nevadensis leaf
Sequoiadendron chaneyi multi organs
Angiospermae - Typhales - Sparganiaceae
Sparganium nevadense leaf
Angiospermae - Myrtales - Myrtaceae
Eugenia nevadensis leaf
Angiospermae - Ericales - Ericaceae
Arbutus prexalapensis leaf Axelrod 1939
Angiospermae - Sapindales - Sapindaceae
Aesculus preglabra leaf
Acer tyrrelli multi organs
Acer nevadensis leaf
Acer oregonianum seed/fruit Knowlton 1902
Angiospermae - Rosales - Rhamnaceae
Rhamnus precalifornica leaf Axelrod 1939
Angiospermae - Rosales - Papilionaceae
Robinia californica leaf Axelrod 1939
Angiospermae - Rosales - Rosaceae
Cercocarpus ovatifolius leaf
Cercocarpus eastgatensis leaf
Heteromeles sonomensis leaf
Osteolepiformes - Chrysolepididae
Chrysolepis convexa leaf
Angiospermae - Rosales - Rosaceae
Lyonothamnus parvifolius leaf
Prunus chaneyi leaf
Angiospermae - Rosales - Pomaceae
Amelanchier grayi leaf
Sorbus idahoensis leaf
Crataegus newberryi leaf Cockerell 1907
Angiospermae - Fagales - Fagaceae
Quercus hannibalii multi organs
Quercus shrevoides leaf
Quercus simulata leaf Knowlton 1898
Lithocarpus nevadensis multi organs
Angiospermae - Fagales - Betulaceae
Betula vera leaf
Betula thor multi organs Knowlton 1926
Angiospermae - Malpighiales - Salicaceae
Salix pelviga leaf
Salix storeyana leaf
Salix desatoyana leaf
Salix venosiuscula leaf
Populus cedrusensis leaf
Populus eotremuloidea leaf
Populus payettensis leaf
Populus bonhamii leaf
Populus pliotremuloides leaf Axelrod 1937
Angiospermae - Nymphaeales - Nymphaeaceae
Nymphaeites nevadensis multi organs Brown 1938
Angiospermae - Lamiales - Oleaceae
Fraxinus coulteri seed/fruit
Angiospermae - Saxifragales - Grossulariaceae
Ribes stanfordianum leaf
Angiospermae - Ranunculales - Berberidaceae
Mahonia reticulata leaf
Mahonia simplex leaf
Mahonia macginitiei leaf
Angiospermae - Ceratophyllales - Ceratophyllaceae
Ceratophyllum praedemersum leaf
Angiospermae - Poales - Typhaceae
Typha lesquereuxi leaf Cockerell 1908
see common names

Geography
Country:United States State/province:Nevada County:Churchill
Coordinates: 39.3° North, 117.9° West (view map)
Paleocoordinates:40.2° North, 114.3° West
Basis of coordinate:estimated from map
Altitude:5110 feet
Time
Period: Neogene Epoch: Miocene
Stage: Burdigalian 10 m.y. bin: Cenozoic 5
*Period:Middle Tertiary - Middle Tertiary *Epoch:Middle Miocene - Middle Miocene
*International age/stage:Middle - Late/Upper Burdigalian - Middle - Late/Upper Burdigalian
Key time interval: Burdigalian
Age range of interval: 20.44 - 15.98 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Middlegate
Lithology and environment
Primary lithology:brown lithified "shale"
Includes fossils?Y
Lithology description: Buff to reddish-brown shale
Environment:lacustrine indet.
Taphonomy
Modes of preservation:cast,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,mechanical,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:27702
Authorizer:B. Tiffney Enterer:M. Sherwood, C. Glavich
Modifier:B. Tiffney Research group:paleobotany
Created:2002-12-18 10:49:13 Last modified:2003-07-15 15:32:35
Access level:database members Released:2002-12-18 10:49:13
Creative Commons license:CC BY
Reference information

Primary reference:
7613. D.I. Axelrod. 1985. Miocene Floras From the Middlegate Basin, West-Central Nevada. 129:1-209 [B. Tiffney/M. Sherwood/M. Sherwood]