UCMP loc. P3325, Chalk Bluffs (Eocene of the United States)

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 23996: authorized by Hallie Sims, entered by Heather Lindon on 26.07.2002, edited by Hallie Sims and Karl Volkman

Creative Commons license: CC BY (attribution)

Taxonomic list

Carpites
  -
Carpites egregia MacGinitie 1941
Angiospermae
 Fagales - Fagaceae
Castanopsis longipetiolatum Knowlton 1899 chinquapin
Quercus nevadensis Lesquereux 1878 oak
Quercus distincta Lesquereux 1878 oak
 Fagales - Juglandaceae
Engelhardtia nevadensis MacGinitie 1941
 Fagales - Betulaceae
Alnus operia MacGinitie 1941 alder
 Rosales - Rosaceae
Chrysobalanus eoicaco MacGinitie 1941 rose
 Rosales - Rhamnaceae
Rhamnidium chaneyi Potbury 1935 buckthorn
 Rosales - Ulmaceae
Chaetoptelea pseudofulva Lesquereux 1878 elm
 Celastrales - Celastraceae
Celastrus preangulata MacGinitie 1941 bittersweet
 Malpighiales - Euphorbiaceae
Mallotus riparius MacGinitie 1941 spurge
 Sapindales - Anacardiaceae
Rhus mixta Lesquereux 1878 sumac
 Sapindales - Sapindaceae
Thouinopsis myricaefolia Lesquereux 1878 soapberry
Koelreuteria dilcheri n. sp. Wang et al. 2013 golden rain tree
fruits
 Sapindales - Burseraceae
Canarium californicum Lesquereux 1878
Dicotyledoneae
 Ericales - Theaceae
Gordonia egregia Lesquereux 1878 tea
Angiospermae
 Gentianales - Apocynaceae
Nerium hinoidea n. sp. MacGinitie 1941 oleander
Tabernaemontana chrysophylloides Lesquereux 1878 milkwood
 Cornales - Cornaceae
Cornus kelloggii Lesquereux 1878 dogwood
 Saxifragales - Cercidiphyllaceae
Cercidiphyllum elongatum Brown 1939 katsura
 Saxifragales - Hamamelidaceae
Liquidambar californicum Lesquereux 1878 sweetgum
 Proteales - Platanaceae
"Platanophyllum whitneyi" = Macginitiea whitneyi, Platanus appendiculata
"Platanophyllum whitneyi" = Macginitiea whitneyi Lesquereux 1878
Platanus appendiculata Lesquereux 1878 plane tree
 Laurales - Lauraceae
Persea pseudocarolinensis Lesquereux 1878 laurel
Persea praelingue Sanborn 1935 laurel
Cinnamomum dilleri Knowlton 1902 cinnamon
Neolitsea lata MacGinitie 1941 laurel
 Magnoliales - Magnoliaceae
Magnolia dayana Cockerell 1910 magnolia
 Bennettitales -
Zamites californica MacGinitie 1941