Also known as S Keownville; USGS # 25492
Where: Union County, Mississippi (34.5° N, 88.9° W: paleocoordinates 38.1° N, 66.2° W)
• small collection-level geographic resolution
When: Haustator bilira other zone, basal Member (Chiwapa Formation), Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• No forams have been recovered from this unit, it is assigned to the Gansserina gansseri zone by Mancini et al. (1996) by sequence stratigraphy and the biostratigraphy of surrounding units. Haustator bilira assemblage zone. PJW: Nyborg et al. provide updated stratigraphy that restricts Chiwapa to Racemiguembelina fructicosa/CC25/Discoscaphites conradi zones.
• member-level stratigraphic resolution
Environment/lithology: marine; lithified, calcareous sandstone
Size class: mesofossils
Preservation: original calcite
Reposited in the USGS
Collection methods: bulk,
• Sohl collection
Primary reference: N. F. Sohl and C. F. Koch. 1983. Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain. USGS Open File Report 83-451:1-239 [M. Kosnik/M. Kosnik/M. Uhen]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 4117: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Gastropoda | |
"Turritella (Sohlitella) trilira" = Turritella trilira
"Turritella (Sohlitella) trilira" = Turritella trilira Conrad 1860 turret shell Turritella (Sohlitella) trilira (C
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Bivalvia | |
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Cephalopoda | |
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Deuteropoda | |
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