Also known as Scarped area N of dam of Union County lake, 1.1 miles NE of Pleasant ridge, Union Co., Miss.
Where: Union County, Mississippi (34.5° N, 89.0° W: paleocoordinates 38.1° N, 66.3° W)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Nostoceras alternatum ammonoid zone, Coon Creek Tongue Member (Ripley Formation), Early/Lower Maastrichtian (70.6 - 66.0 Ma)
• Ammonoid zone from Cobban 1974 and Cobban and Kennedy 1995. upper Coon creek
• group of beds-level stratigraphic resolution
Environment/lithology: marine; glauconitic, gray, silty, calcareous sandstone
Size class: mesofossils
Collection methods: USGS 18078, 18629: L.C. Conant and A. Brown 1939, USGS 18616: L. W. Stephenson and W. H. Monroe 1940, USGS 25411: N.F. Sohl 1950-2, 1955
Primary reference: N. F. Sohl. 1960. Archeogastropoda, Mesogastropoda and stratigraphy of the Ripley, Owl Creek, and Prairie Bluff Formations. US Geological Survey Professional Paper 331:1-151 [M. Kosnik/M. Kosnik]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 7586: authorized by Matt Kosnik, entered by Matt Kosnik on 18.07.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
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"Cossmannia tennesseensis" = Anteglosia tennesseensis Wade 1926 snail Anteglosia tennesseensis (Wade)
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Laxispira lumbricalis, Trobus corona, Turritella hilgardi, Turritella howelli, Turritella tippana, "Haustator trilira" = Turritella trilira, Turritella vertebroides
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Graciliala calcaris, Anchura abrupta, Pugnellus goldmani, Pugnellus (Pugnellus) densatus, "Pugnellus (Gymnarus) abnormalis" = Bizarrus abnormalis, Pterocerella sp., Drepanochilus triliratus
"Pugnellus (Gymnarus) abnormalis" = Bizarrus abnormalis Wade 1926 snail Pugnellus (Gymnarus) abnormalis Wade
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Buccinopsis solida, Buccinopsis dorothiella, Ornopsis (Pornosis) modica, Ornopsis (Pornosis) digressa, Stantonella ripleyana, Aliofusus stamineus, Hydrotribulus elegans, ? Odontobasis sulcata
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Remera microstriata, Remera stephensoni, Anomalofusus subnodosus, Bellifusus angulicostatus, Bellifusus curvicostatus, Graphidula terebriformis, Graphidula melanopsis, Drilluta distans, Hercorhyncus (Hercorhyncus) tippanus, Paleopsephaea mutabilis, Paleopsephaea tenuilirata
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Sargana stantoni, "Lowenstamia liratus" = Sohliina liratus
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Parafusus coloratus, Parafusus callilateris, Longoconcha quadrilirata, Volutomorpha sp., Volutomorpha dumasensis, Volutomorpha aspera, Volutomorpha producta, Volutomorpha valida, Volutomorpha retifera, Liopeplum leioderma
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"Ringicula pulchella" = Ringicula (Ringicula) pulchella, Oligoptycha corrugata
"Ringicula pulchella" = Ringicula (Ringicula) pulchella Shumard 1861 snail Ringicula pulchella Shumard
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