Little Stave Creek Ostracoda (Eocene of the United States)

Where: Clarke County, Alabama (31.5° N, 88.0° W: paleocoordinates 32.2° N, 79.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Gosport Formation, Bartonian (41.3 - 38.0 Ma)

• collection is from an "outcrop of the Gosport formation... about twenty feet thick"

• member-level stratigraphic resolution

Environment/lithology: marine; coarse-grained, ferruginous, glauconitic, brown, green sandstone

• "coarse green glauconitic or brown ferruginous sand. Parts of it are very fossiliferous" but "the micro-fossils appear to be scarce" whereas molluscs occur in shellbeds

Size classes: macrofossils, microfossils

Collected by D. B. Blake, L. L. McCormick

• Louisiana State University collection

Primary reference: D. B. Blake. 1950. Gosport Eocene Ostracoda from Little Stave Creek, Alabama. Journal of Paleontology 24(2):174-184 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 94040: authorized by John Alroy, entered by John Alroy on 08.02.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Carditida - Carditidae
"Venericardia alticostata" = Venericardia (Claibornicardia) alticostata
"Venericardia alticostata" = Venericardia (Claibornicardia) alticostata Conrad 1833 clam
Ostracoda
 Podocopida - Cytherettidae
Cytheretta alexanderi Howe and Chambers 1935 ostracod
 Podocopida - Bythocytheridae
Monoceratina alexanderi Howe and Chambers 1935 ostracod
 Podocopida - Xestoleberididae
Xestoleberis sp. Sars 1866 ostracod
 Podocopida - Cytherideidae
Haplocytheridea goochi, Clithrocytheridea caldwellensis, "Cytherideis gosportensis n. sp." = Cushmanidea, "Cytherideis perforata n. sp." = Cushmanidea, "Cytherideis alta n. sp." = Cushmanidea, "Clithrocytheridea garretti" = Cytheridea garretti, "Clithrocytheridea grigsbyi" = Cytheridea grigsbyi, "Haplocytheridea montgomeryensis" = Cytheridea montgomeryensis
"Cytherideis gosportensis n. sp." = Cushmanidea ostracod
"Cytherideis perforata n. sp." = Cushmanidea ostracod
"Cytherideis alta n. sp." = Cushmanidea ostracod
"Clithrocytheridea garretti" = Cytheridea garretti Howe and Chambers 1935 ostracod
"Clithrocytheridea grigsbyi" = Cytheridea grigsbyi Howe and Chambers 1935 ostracod
"Haplocytheridea montgomeryensis" = Cytheridea montgomeryensis Howe and Chambers 1935 ostracod
 Podocopida - Cytheruridae
Paracytheridea belhavenensis Howe and Chambers 1935 ostracod
Cytherura semireticulata n. sp. ostracod
Cytherura ultra n. sp. ostracod
 Podocopida - Trachyleberididae
 Podocopida - Loxoconchidae
Loxoconcha stavensis n. sp. ostracod
Loxoconcha clarkensis n. sp. ostracod
 Podocopida - Hemicytheridae
Triginglymus hyperochus n. gen. n. sp.
Triginglymus hyperochus n. gen. n. sp. ostracod
 Podocopida - Bairdiidae
Bairdia gosportensis n. sp. ostracod
 Platycopida - Cytherellidae
Cytherella sp. Jones 1849 ostracod
Echinoidea
 Clypeasteroida - Protoscutellidae
Periarchus lyelli Conrad 1834 sand dollar