MGS corehole AN-59, sample R1507 A (Eocene of the United States)

Where: Clarke County, Mississippi (32.3° N, 88.8° W)

• Paleocoordinates: 36.1° N, 69.8° W (Wright 2013)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Basic City Shale Member (Tallahatta Formation), Middle Eocene (47.8 - 37.7 Ma)

• Lower Claibornian: lower part of the middle Eocene. Underlies the Winona Formation.

Environment/lithology: marine; gray, green shale

• Medium-olive-gray shale.

Size class: microfossils

Preservation: original sporopollenin

Reposited in the USGS

Collection methods: core, chemical, hydrochloric, hydroflouric,

• Samples were prepared by means of standard acid maceration as well as by swirling and (or) ZnBr2 separation. Residues were mounted in glycerine jelly.

Primary reference: N. O. Frederiksen. 1979. Paleogene Sporomorph Biostratigraphy, Northeastern Virginia. Palynology 3:129-167 [P. Jardine/H. Morck]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 233001: authorized by Phillip Jardine, entered by Hannah Morck on 10.01.2024

Creative Commons license: CC0 (CC0)

Taxonomic list

unclassified
  -
Dicotyledoneae
 Ericales -
Magnoliopsida
  -
Angiospermae
 Poales - Restionaceae
unclassified
  -
Ginkgoopsida
 Ephedrales - Ephedraceae
Angiospermae
 Fagales - Betulaceae
 Fagales - Juglandaceae
Platycarya "platycaryoides type" Siebold and Zuccarini 1843
Carya "less than 29 µm" Nuttall 1818 hickory
Momipites coryloides Wodehouse 1933
 Fagales - Casuarinaceae
Casuarinidites spp. Cookson and Pike 1954
 Rosales - Ulmaceae
Celtis "tschudyi group - triporate" Linnaeus 1753 hackberry
 Malvales - Tiliaceae
 Malvales - Bombacaceae
Bombacacidites nacimientoensis Anderson 1960
occurrence denoted by a question mark
 Malvales -
"Malvacipollis tschudyi" = Echiperiporites tschudyi, "Malvacipollis cf. tschudyi" = Echiperiporites tschudyi
"Malvacipollis tschudyi" = Echiperiporites tschudyi Frederiksen 1973
"Malvacipollis cf. tschudyi" = Echiperiporites tschudyi Frederiksen 1973
 Mesangiosperms - Araceae
Proxapertites spp. Van der Hammen 1956
 Proteales -
Triatriopollenites "convexus group" Thomson and Pflug 1953
 Proteales - Proteaceae
 Aquifoliales - Aquifoliaceae
Ilexpollenites spp. Thiergart 1937
Dicotyledoneae
 Ericales -
 Ericales - Symplocaceae
? Symplocos "virginiensis group" Jacquin 1760 sweetleaf
Verrutricolporites
  -
Verrutricolporites spp. Van der Hammen and Wijmstra 1964
Plicatopollis
  -
Tetracolporopollenites
  -