Station 7, right bank of Colorado River (Paleocene of the United States)

Where: Bastrop County, Texas (30.2° N, 97.5° W: paleocoordinates 35.1° N, 78.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Tehuacana Limestone Member (Kincaid Formation), Danian (66.0 - 61.6 Ma)

• Tehuacana Limestone Mbr. of Kincaid Fm. is Early Paleocene = Danian according to: Armstrong, A., Nyborg, T., Bishop, G.A., Morales, À.O. and Vega, F.J., 2009. Decapod crustaceans from the Paleocene of Central Texas, USA. Revista Mexicana de Ciencias Geológicas, 26(3), pp.745-763.

Environment/lithology: marginal marine; poorly lithified, glauconitic claystone

• The dark, fossiliferous, glauconitic clay at the base of the bank is rich in Cucullea macrodonta Whitfield and lies near the top of the Kincaid formation and about 25 feet below the strata exposed at station 8. Foraminifera and ostracodes are numerous, and this has been selected as the type locality for Brachycythere plena n. sp., B. interrasilis n. sp., Cythereis midwayensis n. sp. and Cytheromorpha scrobiculata n. sp.

Size classes: mesofossils, microfossils

• Foraminifera and ostracodes are numerous

Collection methods: bulk, sieve

Primary reference: C. I. Alexander. 1934. Ostracoda of the Midway (Eocene) of Texas. Journal of Paleontology 8(2):206-237 [S. Cole/S. Cole/G. Hunt]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191248: authorized by Selina Cole, entered by Selina Cole on 18.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

• This references only lists taxa for which the locality is the type section. Other microfossils are reported to be present but not listed.
Show authors, comments, and common names
Bivalvia
 Arcida - Cucullaeidae
"Cucullea macrodonta" = Cucullaea
"Cucullea macrodonta" = Cucullaea clam
Ostracoda
 Podocopida - Loxoconchidae
Cytheromorpha scrobiculata n. sp.
Cytheromorpha scrobiculata n. sp. Alexander 1934 ostracod
 Podocopida - Trachyleberididae
Brachycythere interrasilis n. sp., Brachycythere plena n. sp., Cythereis midwayensis n. sp.
Brachycythere interrasilis n. sp. Alexander 1934 ostracod
Brachycythere plena n. sp. Alexander 1934 ostracod
Cythereis midwayensis n. sp. Alexander 1934 ostracod