Parker Creek, south, Zone 19 (Miocene of the United States)

Where: Calvert County, Maryland (38.5° N, 76.5° W: paleocoordinates 38.7° N, 73.7° W)

• coordinate estimated from map

When: Boston Cliffs Member (Choptank Formation), Serravallian (13.8 - 11.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; red, sandy claystone

• reddish sandy clay

Size class: macrofossils

Preservation: original phosphate

Reposited in the USNM

Collection methods: surface (in situ),

Primary reference: G. B. Shattuck. 1904. Geological and paleontological relations, with a review of earlier investigations. Maryland Geological Survey Miocene Text xxxiii-clv [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 70832: authorized by Mark Uhen, entered by Mark Uhen on 09.04.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Arcidae
"Arca staminea" = Dallarca staminea Say 1832 clam
 Pectinida - Pectinoidae
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens, "Pecten madisonius" = Chesapecten madisonius
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens Ward and Blackwlder 1975 scallop
"Pecten madisonius" = Chesapecten madisonius Say 1824 scallop
 Carditida - Crassatellidae
 Carditida - Astartidae
Astarte thisphila Glenn 1904 clam
Astarte obruta Conrad 1834 clam
 Lucinida - Lucinidae
Stewartia anodonta Say 1824 clam
 Pholadida - Corbulidae
"Corbula idonea" = Bicorbula idonea
"Corbula idonea" = Bicorbula idonea Conrad 1833 clam
 Cardiida - Cardiidae
"Cardium laqueatum" = Chesacardium laqueatum
"Cardium laqueatum" = Chesacardium laqueatum Conrad 1830 cockle
subspecies laqueatum
 Cardiida - Veneridae
Dosinia acetabulum Conrad 1832 venus clam
subspecies blackwelderi
Mercenaria cuneata Conrad 1869 quahog
"Venus campechiensis" = Mercenaria campechiensis Gmelin 1791 quahog
var. cuneata
Gastropoda
 Cerithioidea - Turritellidae
Turritella terebriformis Conrad 1863 turret shell
 Neogastropoda - Muricidae
Ecphora meganae Ward and Gilinsky 1988 murex snail
subspecies williamsi
Thecostraca
 Balanomorpha - Balanidae
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle