VA-10 (Miocene of the United States)

Where: Maryland (37.2° N, 76.5° W: paleocoordinates 37.4° N, 74.7° W)

When: Yorktown Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• 14 feet below the top of the cliff

Environment/lithology: marginal marine; unlithified, glauconitic, argillaceous, calcareous sandstone

• Yellow argillaceous, calcareous, limonitic, glauconitic sand

Size class: microfossils

Primary reference: D. S. Malkin. 1953. Biostratigraphic study of Miocene Ostracoda of New Jersey, Maryland, and Virginia. Journal of Paleontology 27(6):761-799 [D. Wright/D. Wright]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 191407: authorized by David Wright, entered by David Wright on 26.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Ostracoda
 Podocopida -
Campylocythere laevissima Edwards 1944 ostracod
Clithrocytheridea virginiensis n. sp. Malkin 1953 ostracod
 Podocopida - Hemicytheridae
"Hemicythere conradi" = Malzella conradi
"Hemicythere conradi" = Malzella conradi Howe et al. 1935 ostracod
 Podocopida - Cytheruridae
Eocytheropteron yorktownensis n. sp. Malkin 1953 ostracod
 Podocopida -
Cytherura forulata Edwards 1944 ostracod
Anomocytheridea floridana Howe and Hough 1935 ostracod
 Podocopida - Bairdiidae
Bairdia spp. M'Coy 1844 ostracod
 Podocopida -
Cytheretta burnsi Ulrich and Bassler 1904 ostracod
Trachyleberis martini Ulrich and Bassler 1904 ostracod
Leguminocythereis whitei Swain 1951 ostracod
 Podocopa - Cytheridae
Cytherideis echolsae n. sp. Malkin 1953 ostracod
Cytherideis agricola Howe and Hadley 1935 ostracod
Cytherideis ashermani Ulrich and Bassler 1904 ostracod
Cytherideis rugipustulosa Edwards 1944 ostracod
Cytherideis subaequalis Ulrich and Bassler 1904 ostracod
n. ssp. ulrichi
 Podocopa - Paracytherideidae
Paracytheridea similis n. sp. Malkin 1953 ostracod
Paracytheridea shattucki Ulrich and Bassler 1904 ostracod
n. ssp. curta
 Podocopa - Loxoconchidae
Loxoconcha reticularis Edwards 1944 ostracod