Silverdale Marl Quarry (Oligocene of the United States)

Also known as Gillette marl pits

Where: Onslow County, North Carolina (34.8° N, 77.2° W: paleocoordinates 34.8° N, 71.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: N3 foram zone, Haywood Landing Member (Belgrade Formation), Late/Upper Oligocene (28.4 - 23.0 Ma)

• JA: said to be early Miocene, but the Haywood Landing Member belongs to planktonic foram zone N3, which is late Oligocene (Rossbach and Carter 1991)

• member-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified, shelly/skeletal, yellow, calcareous sandstone

Size class: macrofossils

Preservation: original aragonite, original calcite

Reposited in the AMNH

Collection methods: bulk, sieve,

• COLLECTOR: Unknown collector. REPOSITORY: AMNH (AMNH Loc. 1059)

Primary reference: L. W. Ward. 1992. Molluscan biostratigraphy of the Miocene Middle Atlantic Coastal Plain of North America. Virginia Museum of Natural History 2 [A. Miller/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 71652: authorized by Mark Uhen, entered by Mark Uhen on 02.05.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• TAXONOMY: Identified by A. Hendy; nomenclature based on revision of Kellum (1926) [PBDB Ref# 11173].
Show authors, comments, and common names
unclassified
  -
Calyptraea trochiformis, Ecphoa quadricostata, Leiostricus sp.
Gastropoda
 Neotaenioglossa - Calyptraeidae
Crepidula plana, Crepidula fornicata, "Crucibulum constrictum" = Crucibulum (Dispotaea) constrictum
Crepidula plana Say 1822 slipper shell
Crepidula fornicata Linnaeus 1758 slipper shell
"Crucibulum constrictum" = Crucibulum (Dispotaea) constrictum Conrad 1842 slipper shell
 Cerithioidea - Potamididae
Potamides silverdalensis n. sp.
Potamides silverdalensis n. sp. Richards 1943 horn snail
 Cerithioidea - Turritellidae
Turritella fuerta, Turritella tampae
Turritella fuerta Kellum 1926 turret shell
Turritella tampae Heilprin 1887 turret shell
 Sorbeoconcha - Naticidae
"Polinices judsoni" = Natica judsoni, Sinum imperforatum, "Polinices hemicrypta" = Lunatia hemicrypta, "Polinices duplicata" = Neverita duplicatus
"Polinices judsoni" = Natica judsoni Maury 1910 moon snail
Sinum imperforatum Dall 1915 moon snail
"Polinices hemicrypta" = Lunatia hemicrypta Gabb 1860 moon snail
"Polinices duplicata" = Neverita duplicatus Say 1822 moon snail
 Neogastropoda - Conidae
Conus postalveatus
Conus postalveatus Kellum 1926 cone shell
 Neogastropoda - Terebridae
Terebra whitfieldi
Terebra whitfieldi auger snail
 Neogastropoda - Melongenidae
Busycon spiniger, Busycon spiniger
Busycon spiniger Conrad 1865 whelk
subspecies onslowensis
Busycon spiniger Conrad 1865 whelk
subspecies onslowensis
 Neogastropoda - Fasciolariidae
Fusinus hoffmani, Fusinus trentensis n. sp., "Siphonalia migrans" = Mariafusus migrans
Fusinus hoffmani Ward 1992 snail
Fusinus trentensis n. sp. Richards 1943 snail
"Siphonalia migrans" = Mariafusus migrans Conrad 1843 snail
 Neogastropoda - Volutidae
Scaphella stromboidella, Lyria carolinensis
Scaphella stromboidella Kellum 1926 volute
Lyria carolinensis Kellum 1926 volute
 Neogastropoda - Muricidae
Rapana vaughani, "Tritonopsis gilletti" = Tritonopsis gilletti, "Rapana gilletti n. sp." = Tritonopsis gilletti, Tritonopsis biconica, Ecphora tampaensis, Eupleura harbisoni n. sp., Coralliophila cumberlandia, Murex davisi n. sp., Murex kellumi n. sp., "Typhis siphonifera" = Siphonochelus (Pilsbrytyphis) siphonifera
Rapana vaughani Mansfield 1937 murex snail
"Tritonopsis gilletti" = Tritonopsis gilletti Richards 1943 murex snail
"Rapana gilletti n. sp." = Tritonopsis gilletti Richards 1943 murex snail
Tritonopsis biconica Dall 1915 murex snail
Ecphora tampaensis Dall 1890 murex snail
Eupleura harbisoni n. sp. Richards 1943 murex snail
Murex davisi n. sp. Richards 1943 murex snail
Murex kellumi n. sp. Richards 1943 murex snail
"Typhis siphonifera" = Siphonochelus (Pilsbrytyphis) siphonifera Dall 1915 murex snail
 Neogastropoda - Olividae
"Oliva posti" = Oliva (Oliva) posti, Olivella gardnerae n. sp.
"Oliva posti" = Oliva (Oliva) posti Dall 1915 olive snail
Olivella gardnerae n. sp. Richards 1943 olive snail
 Lepetellida - Fissurellidae
"Diadora chipolana" = Diodora
"Diadora chipolana" = Diodora snail
n. var. caroliniana
Bivalvia
 Mytilida - Mytilidae
Mytilus conradinus
Mytilus conradinus d'Orbigny 1852 mussel
 Arcida - Arcidae
Arca silverdalensis, "Anomalocardia floridana" = Anadara (Sectiarca) floridana, Cunearca silverdalensis
Arca silverdalensis Kellum 1926 ark
"Anomalocardia floridana" = Anadara (Sectiarca) floridana Conrad 1846 ark
Cunearca silverdalensis Kellum 1926 ark
 Arcida - Glycymerididae
Glycymeris anteparilis
Glycymeris anteparilis Kellum 1926 clam
 Ostreida - Ostreidae
Ostrea georgiana
Ostrea georgiana Conrad 1834 oyster
 Pectinida - Pectinoidae
Dimarzipecten crocus, Pecten elixatus, "Pecten trentensis" = Rebeccapecten trentensis, Rebeccapecten berryae
Dimarzipecten crocus Ward 1992 scallop
Pecten elixatus Conrad 1846 scallop
"Pecten trentensis" = Rebeccapecten trentensis Harris 1919 scallop
Rebeccapecten berryae Ward 1992 scallop
 Pectinida - Plicatulidae
Plicatula densata
Plicatula densata Conrad 1843 scallop
 Pectinida - Anomiidae
Anomia onslowensis n. sp., Anomia ruffini
Anomia onslowensis n. sp. Richards 1943 jingle
Anomia ruffini Conrad 1843 jingle
 Lucinida - Lucinidae
Stewartia anodonta, Phacoides silicatus, Phacoides nocariensis
Stewartia anodonta Say 1824 clam
Phacoides silicatus Mansfield 1937 clam
Phacoides nocariensis Kellum 1926 clam
 Pholadida - Corbulidae
Corbula burnsi, "Bicorbula idonea" = Bicorbula idonea, "Corbula idonea" = Bicorbula idonea
Corbula burnsi Dall 1937 clam
"Bicorbula idonea" = Bicorbula idonea Conrad 1833 clam
"Corbula idonea" = Bicorbula idonea Conrad 1833 clam
 Cardiida - Veneridae
"Callista neusensis" = Meretrix neusensis, Macrocallista tia, "Macrocallista acuminata" = Macrocallista (Macrocallista) acuminata, Gemma magna, "Venus gardnerae" = Mercenaria gardnerae, Mercenaria capax, "Venus erecta" = Mercenaria erecta, Antigona lamellacea, "Chione spada" = Chione (Chamelea) spada
"Callista neusensis" = Meretrix neusensis Harris 1919 venus clam
Macrocallista tia Kellum 1926 venus clam
"Macrocallista acuminata" = Macrocallista (Macrocallista) acuminata Dall 1903 venus clam
Gemma magna Dall 1903 venus clam
n. subspecies striata
"Venus gardnerae" = Mercenaria gardnerae Kellum 1926 quahog
Mercenaria capax Conrad 1843 quahog
"Venus erecta" = Mercenaria erecta Kellum 1926 quahog
Antigona lamellacea Kellum 1926 venus clam
"Chione spada" = Chione (Chamelea) spada Dall 1903 venus clam
 Cardiida - Ungulinidae
"Diplodonta alta" = Diplodonta (Diplodonta) alta
"Diplodonta alta" = Diplodonta (Diplodonta) alta Dall 1890 clam
 Cardiida - Donacidae
Donax idoneus
Donax idoneus Conrad 1872 clam
 Cardiida - Cardiidae
Dinocardium taphrium, Cardium midyetti n. sp.
Dinocardium taphrium Dall 1900 cockle
Cardium midyetti n. sp. Richards 1943 cockle
 Carditida - Carditidae
Venericardia nodifera, Cyclocardia trentensis, "Venericardia granulata" = Cyclocardia granulata
Venericardia nodifera Kellum 1926 clam
Cyclocardia trentensis Ward 1992 clam
"Venericardia granulata" = Cyclocardia granulata Say 1824 clam
 Carditida - Astartidae
Astarte onslowensis, Astarte claytonrayi
Astarte onslowensis Kellum 1926 clam
Astarte claytonrayi Ward 1992 clam
 Carditida - Crassatellidae
"Crassatellites mississippiensis" = Crassatella (Crassatella) mississippiensis
"Crassatellites mississippiensis" = Crassatella (Crassatella) mississippiensis Conrad 1848 clam
subspecies silverdalensis