PBDB Collection

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].

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Bivalvia
Carditida - Crassatellidae	Crassatellites mississippiensis silverdalensis Crassatellites mississippiensis silverdalensis clam
Gastropoda
Lepetellida - Fissurellidae	Diadora chipolana caroliniana n. ssp. Diadora chipolana caroliniana n. ssp. snail
Neotaenioglossa - Calyptraeidae	Calyptraea trochiformis Calyptraea trochiformis slipper shell
unclassified
-	Ecphoa quadricostata, Leiostricus sp. Ecphoa quadricostata Leiostricus sp.
Bivalvia
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
Pectinida - Pectinoidae	Rebeccapecten berryae, "Pecten trentensis" = Rebeccapecten trentensis, Dimarzipecten crocus, Pecten elixatus Rebeccapecten berryae Ward 1992 scallop "Pecten trentensis" = Rebeccapecten trentensis Harris 1919 scallop Dimarzipecten crocus Ward 1992 scallop Pecten elixatus Conrad 1846 scallop
Pectinida - Anomiidae	Anomia ruffini, Anomia onslowensis n. sp. Anomia ruffini Conrad 1843 jingle Anomia onslowensis n. sp. Richards 1943 jingle
Pectinida - Plicatulidae	Plicatula densata Plicatula densata Conrad 1843 scallop
Ostreida - Ostreidae	Ostrea georgiana Ostrea georgiana Conrad 1834 oyster
Mytilida - Mytilidae	Mytilus conradinus Mytilus conradinus d'Orbigny 1852 mussel
Carditida - Carditidae	Cyclocardia trentensis, "Venericardia granulata" = Cyclocardia granulata, Venericardia nodifera Cyclocardia trentensis Ward 1992 clam "Venericardia granulata" = Cyclocardia granulata Say 1824 clam Venericardia nodifera Kellum 1926 clam
Carditida - Astartidae	Astarte claytonrayi, Astarte onslowensis Astarte claytonrayi Ward 1992 clam Astarte onslowensis Kellum 1926 clam
Lucinida - Lucinidae	Phacoides silicatus, Phacoides nocariensis, Stewartia anodonta Phacoides silicatus Mansfield 1937 clam Phacoides nocariensis Kellum 1926 clam Stewartia anodonta Say 1824 clam
Pholadida - Corbulidae	"Bicorbula idonea" = Bicorbula idonea, "Corbula idonea" = Bicorbula idonea, Corbula burnsi "Bicorbula idonea" = Bicorbula idonea Conrad 1833 clam "Corbula idonea" = Bicorbula idonea Conrad 1833 clam Corbula burnsi Dall 1937 clam
Cardiida - Ungulinidae	"Diplodonta alta" = Diplodonta (Diplodonta) alta "Diplodonta alta" = Diplodonta (Diplodonta) alta Dall 1890 clam
Cardiida - Veneridae	"Callista neusensis" = Meretrix neusensis, Macrocallista tia, "Macrocallista acuminata" = Macrocallista (Macrocallista) acuminata, Gemma magna striata n. ssp., "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 striata n. ssp. Richards 1943 venus clam "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 - Cardiidae	Dinocardium taphrium, Cardium midyetti n. sp. Dinocardium taphrium Dall 1900 cockle Cardium midyetti n. sp. Richards 1943 cockle
Cardiida - Donacidae	Donax idoneus Donax idoneus Conrad 1872 clam
Gastropoda
Neotaenioglossa - Calyptraeidae	"Crucibulum constrictum" = Crucibulum (Dispotaea) constrictum, Crepidula plana, Crepidula fornicata "Crucibulum constrictum" = Crucibulum (Dispotaea) constrictum Conrad 1842 slipper shell Crepidula plana Say 1822 slipper shell Crepidula fornicata Linnaeus 1758 slipper shell
Neogastropoda - Terebridae	Terebra whitfieldi Terebra whitfieldi auger snail
Neogastropoda - Conidae	Conus postalveatus Conus postalveatus Kellum 1926 cone shell
Neogastropoda - Fasciolariidae	"Siphonalia migrans" = Mariafusus migrans, Fusinus hoffmani, Fusinus trentensis n. sp. "Siphonalia migrans" = Mariafusus migrans Conrad 1843 snail Fusinus hoffmani Ward 1992 snail Fusinus trentensis n. sp. Richards 1943 snail
Neogastropoda - Melongenidae	Busycon spiniger onslowensis, Busycon spiniger onslowensis Busycon spiniger onslowensis Kelluk 1926 whelk Busycon spiniger onslowensis Kelluk 1926 whelk
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
Neogastropoda - Volutidae	Lyria carolinensis, Scaphella stromboidella Lyria carolinensis Kellum 1926 volute Scaphella stromboidella Kellum 1926 volute
Neogastropoda - Muricidae	"Typhis siphonifera" = Siphonochelus (Pilsbrytyphis) siphonifera, Murex kellumi n. sp., Murex davisi n. sp., Rapana vaughani, "Tritonopsis gilletti" = Tritonopsis gilletti, "Rapana gilletti n. sp." = Tritonopsis gilletti, Tritonopsis biconica, Ecphora tampaensis, Coralliophila cumberlandia, Eupleura harbisoni n. sp. "Typhis siphonifera" = Siphonochelus (Pilsbrytyphis) siphonifera Dall 1915 murex snail Murex kellumi n. sp. Richards 1943 murex snail Murex davisi n. sp. Richards 1943 murex snail 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 Coralliophila cumberlandia murex snail Eupleura harbisoni n. sp. Richards 1943 murex snail
Sorbeoconcha - Naticidae	"Polinices judsoni" = Natica judsoni, "Polinices hemicrypta" = Lunatia hemicrypta, Sinum imperforatum, "Polinices duplicata" = Neverita duplicatus "Polinices judsoni" = Natica judsoni Maury 1910 moon snail "Polinices hemicrypta" = Lunatia hemicrypta Gabb 1860 moon snail Sinum imperforatum Dall 1915 moon snail "Polinices duplicata" = Neverita duplicatus Say 1822 moon snail
Cerithioidea - Turritellidae	Turritella fuerta, Turritella tampae Turritella fuerta Kellum 1926 turret shell Turritella tampae Heilprin 1887 turret shell
Cerithioidea - Potamididae	Potamides silverdalensis n. sp. Potamides silverdalensis n. sp. Richards 1943 horn snail