Ocean City, Worcester Co. - Pamlico Fm (Pleistocene) (Pleistocene of the United States)

Also known as Maryland Loc. 1

Where: Worcester County, Maryland (38.6° N, 75.1° W: paleocoordinates 38.5° N, 75.1° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Pamlico Formation, Late/Upper Pleistocene (0.1 - 0.0 Ma)

• LITHOSTRATIGRAPHY: From Pamlico Formation (Richards 1962). AGE: Sangamon-Wisconsin (MacClintock and Richards 1936), Pleistocene (Richards 1962).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; unlithified siliciclastic sediments

• ENVIRONMENT: No specific environment provided in text for individual collection.
• SPECIFIC LITHOLOGY: No detailed lithologic data reported in text. Cape May Formation contains sands and clays, hence siliciclastic. LITHIFICATION: Assumed to be unlithified given age and figured specimens in Richards (1962).

Size class: macrofossils

Collection methods: COLLECTORS: Based on collections of Shattock (1906), Smith (1920), Richards (1936), Blake (1955). REPOSITORIES: Collections held in various museums, possibly including the Academy of Natural Sciences, USNM, MCZ (Cambridge), and AMNH.

Primary reference: H. G. Richards. 1962. Studies on the marine Pleistocene: Part II. The marine Pleistocene mollusks of eastern North America. Transactions of the American Philosophocal Society 52(3):1-142 [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 66706: authorized by Austin Hendy, entered by Austin Hendy on 12.10.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: Not an authoratative publication, and somewhat antiquated. However, all occurrences include species-resolution assignments and list synonymies.
Bivalvia
 Arcida - Arcidae
"Anadara ovalis" = Lunarca ovalis
"Anadara ovalis" = Lunarca ovalis Bruguiere 1789 ark
 Arcida - Noetiidae
"Noetia (Eontia) ponderosa" = Eontia ponderosa
"Noetia (Eontia) ponderosa" = Eontia ponderosa Say 1822 clam
 Pectinida - Pectinoidae
"Aequipecten irradians" = Argopecten irradians
"Aequipecten irradians" = Argopecten irradians Lamarck 1819 calico scallop
 Pectinida - Anomiidae
Anomia simplex d'Orbigny 1845 jingle
 Ostreida - Ostreidae
Crassostrea virginica Gmelin 1791 oyster
 Mytilida - Mytilidae
"Modiolus demissus" = Geukensia demissa
"Modiolus demissus" = Geukensia demissa Dilwyn 1817 mussel
 Pholadida - Myidae
"Mya arenaria" = Mya (Arenomya) arenaria
"Mya arenaria" = Mya (Arenomya) arenaria Linnaeus 1758 softshell clam
 Pholadida - Pholadidae
 Cardiida - Veneridae
Mercenaria mercenaria Linnaeus 1758 quahog
 Cardiida - Solecurtidae
"Tagelus gibbus" = Tagelus plebeius
"Tagelus gibbus" = Tagelus plebeius Lightfoot 1786 clam
 Solenida - Pharidae
Ensis directus Conrad 1844 clam
Gastropoda
 Neogastropoda - Columbellidae
"Columbella (Anachis) avara" = Costoanachis avara
"Columbella (Anachis) avara" = Costoanachis avara Say 1822 snail
 Neogastropoda - Nassariidae
"Nassarius vibex" = Nassarius (Nassarius) vibex, "Nassarius obsoletus" = Ilyanassa obsoleta, "Nassarius trivittatus" = Ilyanassa trivittata
"Nassarius vibex" = Nassarius (Nassarius) vibex Say 1822 snail
"Nassarius obsoletus" = Ilyanassa obsoleta Say 1822 snail
"Nassarius trivittatus" = Ilyanassa trivittata Say 1822 snail
 Neogastropoda - Melongenidae
Busycon carica Gmelin 1792 whelk
 Neogastropoda - Muricidae
Eupleura caudata Say 1822 murex snail
"Thais haemastoma" = Stramonita haemostoma Linnaeus 1767 murex snail
Subspecies: T. haemastoma floridana
 Littorinoidea - Littorinidae
"Littorina irrorata" = Littoraria irrorata
"Littorina irrorata" = Littoraria irrorata Say 1822 periwinkle
 Naticoidea - Naticidae
"Polinices duplicatus" = Neverita duplicatus
"Polinices duplicatus" = Neverita duplicatus Say 1822 moon snail
 Calyptraeoidea - Calyptraeidae
Crepidula plana Say 1822 slipper shell
Crepidula fornicata Linnaeus 1758 slipper shell
 Pulmonata - Ellobiidae
"Melampus lineatus" = Melampus bidentatus
"Melampus lineatus" = Melampus bidentatus Say 1822 pulmonate