PBDB Collection

Sohl 023 (Cretaceous of the United States)

Also known as Roadcut on new Mississippi State Route 30 on E slope of Sweden Hill, 0.45 mile NW of Graham, 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

• Sand, blue-gray, silty, micaceous, calcareous, glacuonitic, fossiliferous, with two crab-bearing concretion zones at 15-16 ft above base; other fossiliferous concretions occur 9 ft above base but lack crab remains.

Size class: mesofossils

Collection methods: USGS 25494: L.W. Stephenson and N.F. Sohl 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 7602: authorized by Matt Kosnik, entered by Matt Kosnik on 18.07.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Gastropoda
Heterostropha - Mathildidae	Mathilda unionensis Mathilda unionensis snail Mathilda unionensis Sohl
Heterostropha - Architectonicidae	Pseudomalaxis pilsbryi, Pseudomalaxis sp. Pseudomalaxis pilsbryi snail Pseudomalaxis pilsbryi Harbison Pseudomalaxis sp. Fischer 1850 snail Pseudomalaxis sp. A Sohl 1960
Seguenzioidea - Eucyclidae	Calliomphalus (Calliomphalus) americanus, "Calliomphalus conanti" = Calliomphalus (Planolateralus) conanti Calliomphalus (Calliomphalus) americanus snail Calliomphalus (Calliomphalus) americanus Wade "Calliomphalus conanti" = Calliomphalus (Planolateralus) conanti Sohl 1960 snail Calliomphalus conanti Sohl
Cerithioidea - Turritellidae	Trobus corona, "Haustator trilira" = Turritella trilira, Turritella vertebroides Trobus corona turret shell Trobus corona (Conrad) "Haustator trilira" = Turritella trilira Conrad 1860 turret shell Turritella trilira Conrad Turritella vertebroides Morton 1834 turret shell Turritella vertebroides Morton
Sorbeoconcha - Naticidae	Gyrodes supraplicatus, Euspira rectilabrum Gyrodes supraplicatus Conrad 1858 moon snail Gyrodes supraplicatus (Conrad) Euspira rectilabrum Conrad 1858 moon snail Euspira rectilabrum (Conrad)
Neogastropoda - Fasciolariidae	Graphidula melanopsis Graphidula melanopsis Conrad 1860 snail Graphidula melanopsis (Conrad)
Neogastropoda - Buccinidae	Ptychosyca inornata, Stantonella ripleyana Ptychosyca inornata Gabb 1876 true whelk Ptychosyca inornata Gabb Stantonella ripleyana Conrad 1860 true whelk Stantonella ripleyana (Conrad)
Neogastropoda - Paladmetidae	Paladmete cancellaria Paladmete cancellaria Conrad 1858 snail Paladmete cancellaria (Conrad)
Neogastropoda - Pyropsidae	Pyropsis sp., Pyropsis perlata Pyropsis sp. Conrad 1860 snail Pyropsis sp. B Sohl 1960 Pyropsis perlata Conrad 1860 snail Pyropsis perlata Conrad
Neogastropoda - Turbinellidae	Napulus fragilis Napulus fragilis Sohl 1964 snail Napulus fragilis Sohl
Neogastropoda - Volutidae	Longoconcha quadrilirata, Volutomorpha retifera, Volutomorpha producta Longoconcha quadrilirata Sohl 1964 volute Longoconcha quadrilirata Sohl Volutomorpha retifera Dall 1907 volute Volutomorpha retifera Dall Volutomorpha producta Sohl 1964 volute Volutomorpha producta Sohl
Neogastropoda - Muricidae	Sargana stantoni Sargana stantoni Weller 1907 murex snail Sargana stantoni (Weller)
Sorbeoconcha - Aporrhaidae	"Pugnellus (Gymnarus) abnormalis" = Bizarrus abnormalis, Pugnellus goldmani, Pugnellus (Pugnellus) densatus, "Arrhoges (Latiala) lobata" = Latiala lobata, Graciliala calcaris "Pugnellus (Gymnarus) abnormalis" = Bizarrus abnormalis Wade 1926 snail Pugnellus (Gymnarus) abnormalis Wade Pugnellus goldmani snail Pugnellus goldmani Gardner Pugnellus (Pugnellus) densatus snail Pugnellus (Pugnellus) densatus Conrad "Arrhoges (Latiala) lobata" = Latiala lobata Wade 1926 snail Arrhoges (Latiala) lobata (Wade) Graciliala calcaris snail Graciliala calcaris (Wade)