Where: Beaverhead County, Montana (45.2° N, 113.1° W: paleocoordinates 46.1° N, 108.8° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Oligocene to Oligocene (33.9 - 5.3 Ma)
• bed-level stratigraphic resolution
Environment/lithology: "floodplain"; shale
Size class: macrofossils
Preservation: mold/impression, original carbon
Collection methods: surface (in situ),
Primary reference: H. F. Becker. 1969. Fossil Plants of the Tertiary Beaverhead Basins in Southwestern Montana. Palaeontographica Abteilung B 127:1-142 [H. Sims/H. Lindon/J. Alroy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 23972: authorized by Hallie Sims, entered by Heather Lindon on 25.07.2002, edited by Summer Ostrowski
Creative Commons license: CC BY (attribution)
Taxonomic list
Pinopsida | |
Pinus wheeleri Cockerell 1908 pine
Pinus florissanti Lesquereux 1883 pine
Picea lahontensis spruce
Picea magna spruce | |
Taxodium dubium Sternberg 1824 cypress
Sequoia affinis Lesquereux 1876 coast redwood
Juniperus nevadensis juniper
Chamaecyparis linguaefolia cypress
Thuja dimorpha cypress | |
Angiospermae | |
Quercus dayana Knowlton 1902 oak
Quercus simulata Knowlton 1898 oak
Quercus convexa Lesquereux 1878 oak | |
Alnus relata alder
Betula thor Knowlton 1926 birch | |
Canavalia eocenica Berry 1916 jack-beans
Leucaena californica Axelrod 1939 legume | |
Populus balsamoides Göppert 1855 poplar
Salix truckeana Chaney 1944 willow | |
Rosa hilliae, Cercocarpus beaannae, Cercocarpus myricaefolius, Cercocarpus antiquus, Potentilla salmonensis
Rosa hilliae Lesquereux 1883 rose
Cercocarpus beaannae rose
Cercocarpus antiquus Lesquereux 1878 rose
Potentilla salmonensis cinquefoil | |
Paliurus dumosus buckthorn | |
Acer scottiae MacGinitie 1933 maple
Acer glabroides Brown 1937 maple
Acer bolanderi Lesquereux 1878 maple
Acer minor Knowlton 1902 maple
Acer oregonianum Knowlton 1902 maple
Dipteronia insignis soapberry | |
Ptelea miocenica hoptree | |
Cedrela pteraformis mahogany | |
Dicotyledoneae | |
Arctostaphylos cuneata heather | |
Angiospermae | |
Typha lesquereuxi Cockerell 1908 bulrush | |
Cercidiphyllum arcticum katsura | |
Berberis acanthoides barberry
Mahonia reticulata barberry
Mahonia simplex barberry
Mahonia lobodonta Becker 1959 barberry | |
Platanus dissecta, "Acer bendirei" = Platanus bendirei
Platanus dissecta Lesquereux 1878 plane tree
"Acer bendirei" = Platanus bendirei Lesquereux 1888 plane tree |