Atlantic City well bore (unknown depths) - Kirkwood Formation (Miocene of the United States)

Where: Atlantic County, New Jersey (39.4° N, 74.4° W: paleocoordinates 39.5° N, 70.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Shiloh Marl Member (Kirkwood Formation), Early/Lower Miocene (23.0 - 16.0 Ma)

• No lithostratigraphic details or stratigraphic relationships provided in text. Equivalent in age and slightly older than the Calvert Formaiton of Maryland and Virginia. Overlain by the Cohansey Sand with a time transgressive contact, Kirkwood Formation is Burdigalian-Langhian in age. Numerous fossils were collected beween the depths of 400 and 1240 ft. The base of the Miocene is thought to occur at 1240 ft; Eocene formanifera were found at the depth of 1430-1450 ft

• member-level stratigraphic resolution

Environment/lithology: coastal; unlithified, argillaceous, silty mudstone and pebbly sandstone

• No geologic or paleoenvironmental data reported in text. Deposited in a sublittoral to nearshore environments
• No lithologic data reported in text. Clayey to silty mudrock, massive sand, and thin pebble lenses.

Size class: macrofossils

Reposited in the USNM

• Collections reposited in USNM and USGS collections. From Richards and Harbison (1942): "The collections of the academy contain numerous fossils obtained by Woolman from wells in Atlantic City, but no depth is given. Many of these specimens were figured by Whitfield. A restudy of Woolman's original well borings has yielded numerous Miocene fossils beween the depths of 400 and 1240 ft. The base of the Miocene is thought to occur at 1240 ft; Eocene formanifera were found at the depth of 1430-1450 ft."

Primary reference: H. G. Richards and A. Harbison. 1942. Miocene invertebrate fauna of New Jersey. Proceedings of the Academy of Natural Sciences of Philadelphia 94:167-250 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 59364: authorized by Austin Hendy, entered by Austin Hendy on 28.03.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for Gastropoda, Bivalvia and Scaphopoda. Nomenclature is somewhat antiquated but provided to species resolution and authoritative.
Lingulata
 Discinida - Disciniidae
Discinisca lugubris Conrad 1834
Gastropoda
 Cerithioidea - Turritellidae
"Turritella plebeia" = Mariacolpus plebeia, Turritella secta
"Turritella plebeia" = Mariacolpus plebeia Say 1824 turret shell
Turritella secta Conrad 1855 turret shell
 Sorbeoconcha - Naticidae
"Polinices heros" = Euspira heros
"Polinices heros" = Euspira heros Say 1822 moon snail
Bivalvia
 Nuculida - Nuculidae
"Nucula proxima" = Nucula (Nucula) proxima
"Nucula proxima" = Nucula (Nucula) proxima Say 1820 Atlantic Nut Clam
 Pectinida - Pectinoidae
"? Pecten eboreus" = Carolinapecten eboreus
"? Pecten eboreus" = Carolinapecten eboreus Conrad 1833 scallop
 Arcida - Arcidae
"? Arca lienosa" = Anadara (Rasia) lienosa, "Arca subrostrata" = Dallarca subrostrata, "? Arca staminea" = Dallarca staminea
"? Arca lienosa" = Anadara (Rasia) lienosa Say 1832 ark
"Arca subrostrata" = Dallarca subrostrata Conrad 1841 clam
"? Arca staminea" = Dallarca staminea Say 1832 clam
 Cardiida - Tellinidae
"Tellina producta" = Tellina (Angulus) producta, "Tellina declivis" = Moerella declivis
"Tellina producta" = Tellina (Angulus) producta Conrad 1840 tellin clam
"Tellina declivis" = Moerella declivis Conrad 1834 tellin clam
 Cardiida - Veneridae
"Dosinia (Dosinidia) acetabulum" = Dosinia acetabulum, "Dosinia acetabulum" = Dosinia acetabulum, "Callocardia (Agriopoma) sayana" = Pitar morrhuanus, Macrocallista marylandica
"Dosinia (Dosinidia) acetabulum" = Dosinia acetabulum Conrad 1832 venus clam
"Dosinia acetabulum" = Dosinia acetabulum Conrad 1832 venus clam
"Callocardia (Agriopoma) sayana" = Pitar morrhuanus Dall 1902 venus clam
Macrocallista marylandica Conrad 1833 venus clam
 Pholadida - Corbulidae
"Corbula idonea" = Bicorbula idonea
"Corbula idonea" = Bicorbula idonea Conrad 1833 clam
 Lucinida - Lucinidae
"Phacoides trisulcata" = Cavilinga trisulcata
"Phacoides trisulcata" = Cavilinga trisulcata Conrad 1841 clam
Subspecies: P. trisulcata whitfieldi
 Carditida - Crassatellidae
"Eucrassatella melina" = Marvacrassatella melina
"Eucrassatella melina" = Marvacrassatella melina Conrad 1832 clam
 Carditida - Carditidae
"Cardita arata" = Carditamera arata
"Cardita arata" = Carditamera arata Conrad 1832 clam
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
Astarte cuneiformis Conrad 1840 clam
Astarte thomasii Conrad 1855 clam
Astarte perplana Conrad 1840 clam
Astarte symmetrica Conrad 1834 clam
Anthozoa
 Scleractinia - Flabellidae