UCMP 1540, Stewartville (Paleocene of the United States)

Where: Contra Costa County, California (37.9° N, 121.9° W: paleocoordinates 42.4° N, 101.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Turritella infragranulata pachecoensis other zone, Selandian (61.6 - 59.2 Ma)

• Upper middle Paleocene (Selandian) = Turritella infragranulata pachecoensis Zone. “Martinez” Formation, lower member

Environment/lithology: marine; lithified sandstone

Size class: macrofossils

Collected by R.E. Dickerson in 1912; reposited in the UCMP

Primary reference: R. E. Dickerson. 1914. Fauna of the Martinez Eocene of California. Bulletin of the Department of Geology, University of California 6:61-180 [P. Holroyd/P. Holroyd/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184016: authorized by Matthew Clapham, entered by Vanessa Maciel on 25.01.2017, edited by Patricia Holroyd, Austin Hendy and Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Flabellidae
"Flabellum remondianum" = Flabellum cuneiforme
"Flabellum remondianum" = Flabellum cuneiforme Lonsdale 1845 stony coral
 Scleractinia - Guyniidae
"Trochocyathus zitteli" = Palaeopsammia zitteli
"Trochocyathus zitteli" = Palaeopsammia zitteli Vaughan 1900 stony coral
Gastropoda
 Cerithioidea - Turritellidae
"Turritella clarki n. sp." = Mesalia clarki3, Turritella pachecoensis
"Turritella clarki n. sp." = Mesalia clarki3 Dickerson 1914 turret shell
Turritella pachecoensis Stanton 1896 turret shell
 Sorbeoconcha - Aporrhaidae
Anchura gabbi n. sp. Dickerson 1914 snail
 Neogastropoda - Buccinidae
"Brachysphingus liratus" = Brachysphingus sinuatus, ? Siphonalia lineata
"Brachysphingus liratus" = Brachysphingus sinuatus Gabb 1869 true whelk
? Siphonalia lineata Stanton 1896 true whelk
 Neogastropoda - Nassariidae
Fusus sp. Bruguière 1789 snail
 Neogastropoda - Melongenidae
"Neptunea mucronata" = Sycum mucronatum, Protobusycon judithae2
"Neptunea mucronata" = Sycum mucronatum Gabb 1869 snail
Protobusycon judithae2 Saul 1988 snail
 Neogastropoda - Clavatulidae
"Surcula sp." = Turricula Schumacher 1817 snail
Surcula fairbanksi n. sp. Dickerson 1914 snail
Surcula merriami Dickerson 1914 snail
 Neogastropoda - Turridae
Turris louderbacki n. sp., "Fusus mathewsonii" = Surculites mathewsonii
Turris louderbacki n. sp. Dickerson 1914 turrid
"Fusus mathewsonii" = Surculites mathewsonii Gabb 1864 turrid
 Neogastropoda - Muricidae
"Perissolax tricarnatus" = Pseudoperissolax tricarnatus
"Perissolax tricarnatus" = Pseudoperissolax tricarnatus Weaver 1905 murex snail
 Sorbeoconcha - Ficidae
Urosyca caudata, "Ficopsis sp." = Ficus
Urosyca caudata Gabb 1869 fig shell
"Ficopsis sp." = Ficus Röding 1798 fig shell
 Sorbeoconcha - Xenophoridae
Xenophora zitteli Weaver 1905 carrier shell
 Sorbeoconcha - Naticidae
"Lunatia hornii" = Polinices hornii, Amauropsis martinezensis n. sp.
"Lunatia hornii" = Polinices hornii Gabb 1864 moon snail
Amauropsis martinezensis n. sp. Dickerson 1914 moon snail
 Heterostropha - Acteonidae
"Ringinella pinguis" = Tornatellaea pinguis
"Ringinella pinguis" = Tornatellaea pinguis Gabb 1864 snail
 Opisthobranchia - Cylichnidae
"Cylichna costata" = Scaphander (Mirascapha) costatus
"Cylichna costata" = Scaphander (Mirascapha) costatus Gabb 1864 snail
Bivalvia
 Arcida - Cucullaeidae
Cucullaea mathewsonii Gabb 1864 clam
 Arcida - Glycymerididae
Glycymerita major1 Stanton 1896 clam
 Pectinida - Limidae
"Lima haseltinei" = Acesta (Plicacesta) haseltinei
"Lima haseltinei" = Acesta (Plicacesta) haseltinei Dickerson 1914 file clam
 Pholadomyida - Pholadomyidae
Pholadomya nasuta Gabb 1864 clam
 Pholadida - Teredinidae
Teredo sp. Linnaeus 1758 clam
 Cardiida - Veneridae
"? Tapes quadrata" = Pitar quadratus Gabb 1864 venus clam
Meretrix sp. Lamarck 1799 venus clam
Paphia cf. clarki Dickerson 1914 venus clam
 Cardiida - Cardiidae
"Cardium cooperi" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle
 Cardiida - Tellinidae
"Tellina undulifera" = Tellina (Saulella) undulifera
"Tellina undulifera" = Tellina (Saulella) undulifera Gabb 1869 tellin clam
 Carditida - Crassatellidae
"Crassatellites studleyi" = Crassatella studleyi, "Crassatellites unioides" = Crassatella unioides, "Crassatellites grandis" = Crassatella uvasana
"Crassatellites studleyi" = Crassatella studleyi Dickerson 1914 clam
"Crassatellites unioides" = Crassatella unioides Stanton 1896 clam
"Crassatellites grandis" = Crassatella uvasana Conrad 1855 clam
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium cooperi Gabb 1864 tusk shell