White Butte (USNM 14048) (Eocene of the United States)

Where: Stark County, North Dakota (45.5° N, 103.3° W: paleocoordinates 49.6° N, 85.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Camels Butte Member (Golden Valley Formation), Wasatchian (55.8 - 50.3 Ma)

• The exposed section of White Butte begins just below the HS layer of Jepsen elevation of the HS layer abote the level of the Taylor bed-Alamo Bluff lignite was determined to be approximately 12m.

• bed-level stratigraphic resolution

Environment/lithology: "channel"; poorly lithified, yellow siltstone

Size class: macrofossils

Preservation: mold/impression, adpression

Reposited in the USNM

Collection methods: quarrying,

Primary reference: L. J. Hickey. 1977. Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of western North Dakota. The Geological Society of America Memoir 150:1-183 [H. Sims/S. Ostrowski/J. Cassara]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 10802: authorized by Hallie Sims, entered by Summer Ostrowski on 25.06.2001, edited by Jason Cassara and Scott Wing

Creative Commons license: CC BY (attribution)

Taxonomic list

Carpolithes
  -
Carpolithes bryangosus n. sp. Hickey 1977
Polypodiopsida
 Salviniales - Polypodiidae
Salvinia preauriculata Berry 1925 watermoss
berry, pinnules
 Schizaeales - Polypodiidae
Lygodium kaulfussi Heer climbing fern
sterile, fertile pinnules
 Equisetales - Equisetidae
Equisetum magnum Hickey 1977 horsetail
Nodal sheath
Angiospermae
 Malpighiales - Euphorbiaceae
Stillingia casca n. sp. Hickey 1977 spurge
 Fagales - Betulaceae
Betula hesterna n. sp. Hickey 1977 birch
 Fagales - Juglandaceae
Platycarya americana Hickey 1977
catkins, fruit
Platycarya americana Hickey 1977
Dicotyledoneae
 Parietales - Ternstroemiaceae
Ternstroemites aureavallis n. sp. Hickey 1977
 Ericales - Theaceae
Paraternstroemia hyphovenosa n. gen. n. sp. Hickey 1977 tea
 Myrtales - Melastomataceae
Acrovena laevis n. gen. n. sp.
Acrovena laevis n. gen. n. sp. Hickey 1977
Angiospermae
 Mesangiosperms - Araceae
Porosia verrucosa Lesquereux 1878
 Zingiberales - Zingiberaceae
Zingiberopsis isonervosa n. gen. n. sp.
Zingiberopsis isonervosa n. gen. n. sp. Hickey 1977
leaf fragment, apex, venation
 Mesangiosperms - Arecaceae
Palmacites sp. Brongniart 1822 palm
leaf fragment
 Poales - Cyperaceae
Cyperacites sp. Schimper 1870 sedge
inflorescences
 Typhales - Commelinidae
Sparganium stygium Heer 1855 bur-reed
seed heads with attachments
 Coniferales - Cupressaceae
Glyptostrobus europaeus Brongniart 1833 Chinese swamp cypress