Middlegate Flora (Miocene of the United States)
Where: Churchill County, Nevada (39.3° N, 117.9° W: paleocoordinates 40.2° N, 114.3° W)
• coordinate estimated from map
When: Middlegate Formation, Burdigalian (20.4 - 16.0 Ma)
Environment/lithology: lacustrine; shale
• Opaline shales interbedded with betonite
Size class: macrofossils
Preservation: cast, mold/impression
Collection methods: quarrying, mechanical,
Primary reference: D.I. Axelrod. 1985. Miocene Floras From the Middlegate Basin, West-Central Nevada. 129:1-209 [B. Tiffney/M. Sherwood/M. Sherwood]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 27701: authorized by Bruce Tiffney, entered by Michael Sherwood on 18.12.2002, edited by Carrie Glavich
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| unclassified | |
| Polypodiopsida | |
|
Equisetum alexanderi horsetail | |
| Angiospermae | |
Prunus moragensis, Lyonothamnus parvifolius, Cercocarpus eastgatensis, Cercocarpus antiquus, "Heteromeles sonomensis" = Photinia (Heteromeles)
Prunus moragensis Axelrod 1944 plum
Cercocarpus antiquus Lesquereux 1878 rose
"Heteromeles sonomensis" = Photinia (Heteromeles) rose | |
|
Robinia californica Axelrod 1939 | |
|
Ceanothus precuneatus Axelrod 1939 ceanothus | |
|
Gymnocladus dayana legume | |
Salix storeyana, Salix pelviga, Salix venosiuscula, Salix owyheeana, Salix wildcatensis, Populus bonhamii, Populus payettensis, Populus cedrusensis, Populus pliotremuloides
Salix storeyana willow
Salix pelviga willow
Salix venosiuscula willow
Salix owyheeana willow
Salix wildcatensis willow
Populus bonhamii poplar
Populus payettensis poplar
Populus cedrusensis poplar
Populus pliotremuloides Axelrod 1937 poplar | |
|
Quercus simulata Knowlton 1898 oak | |
|
Juglans nevadensis walnut | |
|
Cedrela trainii mahogany | |
Acer tyrrelli, Acer middlegatensis, Acer nevadensis, Acer negundoides, Acer oregonianum, Acer scottiae
Acer tyrrelli maple
Acer middlegatensis maple
Acer nevadensis maple
Acer negundoides MacGinitie 1933 maple
Acer oregonianum Knowlton 1902 maple
Acer scottiae MacGinitie 1933 maple | |
|
Platanus paucidentata Dorf 1930 plane tree
Platanus dissecta Lesquereux 1878 plane tree | |
|
| |
|
Hydrangea ovatifolius hydrangea | |
|
Mahonia reticulata barberry
Mahonia simplex barberry
Mahonia macginitiei barberry
Mahonia trainii barberry | |
|
Typha lesquereuxi Cockerell 1908 bulrush | |
| Dicotyledoneae | |
|
Arbutus prexalapensis Axelrod 1939 madrone | |
|
Styrax middlegatensis storax | |
| Angiospermae | |
|
Nymphaeites nevadensis Brown 1938 water lily | |
| Pinopsida | |
Abies laticarpus, Abies scherri, Tsuga mertensioides, Pinus sturgisii, Pseudotsuga sonomensis, Picea sonomensis, Picea lahontense
Abies laticarpus fir
Abies scherri fir
Pinus sturgisii pine
Picea sonomensis spruce
Picea lahontense spruce | |