Finis at Jacksboro F3a (upper section) (Carboniferous of the United States)

Where: Jack County, Texas (33.2° N, 98.1° W: paleocoordinates 5.7° S, 32.4° W)

• coordinate estimated from map

When: Finis Shale Member (Graham Formation), Virgilian (303.7 - 298.9 Ma)

Environment/lithology: offshore; gray shale

• Finis Shale can be divided into 3 distinct sedimentary units, although all of these units may not be present or well defined at a specific locality... medium gray shales

Size class: microfossils

Collection methods: 10 kg, wet-sieved (0.841, 0.250, 0.149, 0.074 mm mesh) using Calgon (TM) as deflocculant

Primary reference: P. Buzas-Stephens and M.J. Kocurko. 1993. Non-Fusulinid Foraminifera of the Upper Pennsylvanian Finis Shale, Including the Description of an Enigmatic Taxon. Tulane Studies in Geology and Paleontology 26(1):27-33 [B. Seuss/B. Seuss/B. Seuss]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 219017: authorized by Barbara Seuss, entered by Barbara Seuss on 10.03.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

• most of the foraminifera were present on the 0.149 mm mesh screen
Show authors, comments, and common names
Foraminifera
 Ammodiscoidea - Ammodiscidae
Ammodiscus sp.
Ammodiscus sp. Reuss 1862
 Tetrataxoidea - Tetrataxidae
Tetrataxis sp.
Tetrataxis sp. Ehrenberg 1854
 Endothyroidea - Endothyridae
Endothyra sp.
 Lituolida - Lituolidae
Ammobaculites sp.
Ammobaculites sp. Cushman 1910
Tubothalamea
 Miliolida - Cornuspiridae
Calcivertella sp., Calcitornella sp.