Where: Nevada County, California (39.2° N, 120.9° W: paleocoordinates 40.8° N, 106.3° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Middle Eocene (47.8 - 37.7 Ma)
• bed-level stratigraphic resolution
Environment/lithology: "floodplain"; brown claystone
Size class: macrofossils
Preservation: mold/impression, adpression, original carbon
Collection methods: surface (in situ),
Primary reference: H. D. MacGinitie. 1941. A Middle Eocene Flora from the Central Sierra Nevada. Carnegie Institution of Washington Publication 534:1-178 [H. Sims/H. Lindon/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 23995: authorized by Hallie Sims, entered by Heather Lindon on 26.07.2002, edited by Hallie Sims
Creative Commons license: CC BY (attribution)
Taxonomic list
Dicotyledoneae | |
Terminalia estamina MacGinitie 1941 | |
Gordonia egregia Lesquereux 1878 tea | |
Diospyros retinervis MacGinitie 1941 | |
Angiospermae | |
Cissus pyriformis MacGinitie 1941 | |
Rhus mixta Lesquereux 1878 sumac | |
Thouinopsis myricaefolia Lesquereux 1878 soapberry | |
Canarium californicum Lesquereux 1878 | |
Dalbergia rubra n. sp.
Dalbergia rubra n. sp. MacGinitie 1941 legume | |
Vauquelinia exigua n. sp.
Vauquelinia exigua n. sp. MacGinitie 1941 rose | |
Rhamnidium chaneyi Potbury 1935 buckthorn
Rhamnus calyptus MacGinitie 1941 buckthorn
Rhamnus plenus MacGinitie 1937 buckthorn | |
Chaetoptelea pseudofulva Lesquereux 1878 elm | |
Mallotus riparius MacGinitie 1941 spurge | |
Salix ionensis MacGinitie 1941 willow | |
Quercus nevadensis Lesquereux 1878 oak
Quercus distincta Lesquereux 1878 oak
Castanopsis longipetiolatum Knowlton 1899 chinquapin | |
Alnus operia MacGinitie 1941 alder | |
Engelhardtia nevadensis MacGinitie 1941 | |
Platanophyllum whitenyi, Platanus appendiculata, "Platanophyllum angustiloba" = Macginitiea angustiloba, "Calycites mikanoides" = Macginistemon mikanoides
Platanus appendiculata Lesquereux 1878 plane tree
"Platanophyllum angustiloba" = Macginitiea angustiloba Lesquereux 1878 Plantanophyllum angustiloba serrata, new variety
"Calycites mikanoides" = Macginistemon mikanoides MacGinitie 1941 | |
Liquidambar californicum Lesquereux 1878 sweetgum | |
Hydrangea californica n. sp.
Hydrangea californica n. sp. MacGinitie 1941 hydrangea | |
Cercidiphyllum elongatum Brown 1939 katsura | |
Asclepiadites laterita n. sp.
Asclepiadites laterita n. sp. MacGinitie 1941 dogbane | |
Hyperbaena diforma Potbury 1935 | |
Persea pseudocarolinensis Lesquereux 1878 laurel
Cinnamomum dilleri Knowlton 1902 cinnamon | |
Zamites californica MacGinitie 1941 | |
Phyllites | |
Phyllites cordiaefolia n. sp.
Phyllites cordiaefolia n. sp. MacGinitie 1941 | |
Carpites | |
Carpites egregia MacGinitie 1941 |