UCMP 1540, Stewartville: Selandian, California
collected by R.E. Dickerson 1912

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Scaphopoda - Dentaliida - Dentaliidae
Dentalium cooperi (Gabb 1864)
Gastropoda - Heterostropha - Ringiculidae
Ringinella pinguis (Gabb 1864)
recombined as Ringicula (Ringicula) pinguis
Gastropoda - Opisthobranchia - Cylichnidae
Cylichna costata Gabb 1864
recombined as Scaphander (Mirascapha) costatus
Gastropoda - Turritellidae
Turritella clarki n. sp. Dickerson 1914
Squires and Saul 2007
recombined as Mesalia clarki
Turritella pachecoensis Stanton 1896
Gastropoda - Naticidae
Amauropsis martinezensis n. sp. Dickerson 1914
Lunatia hornii Gabb 1864
recombined as Polinices hornii
Gastropoda - Neogastropoda - Nassariidae
Fusus sp. Bruguière 1789
Gastropoda - Neogastropoda - Buccinidae
Brachysphingus liratus (Gabb 1864)
replaced by Brachysphingus sinuatus
? Siphonalia lineata Stanton 1896
Gastropoda - Neogastropoda - Melongenidae
Neptunea mucronata Gabb 1869
recombined as Sycum mucronatum
Heteroterma gabbi Stanton 1896
    = Protobusycon judithae Saul 1988
Saul 1988
Gastropoda - Neogastropoda - Clavatulidae
Surcula sp. Adams and Adams 1853
synonym of Turricula
Surcula merriami Dickerson 1914
Surcula fairbanksi n. sp. Dickerson 1914
Gastropoda - Neogastropoda - Turridae
Turris louderbacki n. sp. Dickerson 1914
Fusus mathewsonii Gabb 1864
recombined as Surculites mathewsonii
Gastropoda - Neogastropoda - Muricidae
Perissolax tricarnatus Weaver 1905
recombined as Pseudoperissolax tricarnatus
Gastropoda - Aporrhaidae
Anchura gabbi n. sp. Dickerson 1914
Gastropoda - Ficidae
Ficopsis sp. Conrad 1866
synonym of Ficus
Urosyca caudata Gabb 1869
Gastropoda - Xenophoridae
Xenophora zitteli Weaver 1905
Bivalvia - Pectinida - Limidae
Lima haseltinei Dickerson 1914
recombined as Acesta (Plicacesta) haseltinei
Bivalvia - Arcida - Cucullaeidae
Cucullaea mathewsonii Gabb 1864
Bivalvia - Arcida - Glycymerididae
Glycimeris veatchii (Gabb 1864)
    = Glycymerita major Stanton 1896
Hendy 2020
Bivalvia - Cardiida - Cardiidae
Cardium cooperi (Gabb 1864)
synonym of Nemocardium (Nemocardium) linteum
Bivalvia - Cardiida - Tellinidae
Tellina undulifera Gabb 1869
recombined as Tellina (Saulella) undulifera
Bivalvia - Cardiida - Veneridae
Paphia cf. clarki Dickerson 1914
? Tapes quadrata Gabb 1864
recombined as Pitar quadratus
Meretrix sp. Lamarck 1799
Bivalvia - Pholadida - Teredinidae
Teredo sp. Linnaeus 1758
Bivalvia - Pholadomyida - Pholadomyidae
Pholadomya nasuta Gabb 1864
Bivalvia - Carditida - Crassatellidae
Crassatellites studleyi Dickerson 1914
recombined as Crassatella studleyi
Crassatellites grandis Gabb 1864
synonym of Crassatella uvasana
Crassatellites unioides (Stanton 1896)
original and current combination Crassatella unioides
Anthozoa - Scleractinia - Flabellidae
Flabellum remondianum Gabb 1864
synonym of Flabellum cuneiforme
Anthozoa - Scleractinia - Guyniidae
Trochocyathus zitteli Vaughan 1900
recombined as Palaeopsammia zitteli
see common names

Geography
Country:United States State/province:California County:Contra Costa
Coordinates: 37.9° North, 121.9° West (view map)
Paleocoordinates:42.4° North, 101.2° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Paleocene
Stage:Selandian 10 m.y. bin:Cenozoic 1
Key time interval:Selandian Other zone: Turritella infragranulata pachecoensis
Age range of interval:61.60000 - 59.20000 m.y. ago
Stratigraphy
Stratigraphy comments: Upper middle Paleocene (Selandian) = Turritella infragranulata pachecoensis Zone. “Martinez” Formation, lower member
Lithology and environment
Primary lithology: lithified sandstone
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Collectors:R.E. Dickerson Collection dates:1912
Metadata
Database number:184016
Authorizer:M. Clapham, A. Hendy, J. Marcot, P. Holroyd Enterer:V. Maciel, P. Holroyd, J. Marcot, A. Hendy
Modifier:J. Marcot Research group:marine invertebrate
Created:2017-01-25 19:13:43 Last modified:2023-11-29 12:34:48
Access level:the public Released:2017-01-25 19:13:43
Creative Commons license:CC BY
Reference information

Primary reference:
64128. 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]

Secondary references:

63217 A. J. W. Hendy. 2020. Unpublished taxonomic backbone for Eastern Pacific Invertebrate Communities of the Cenozoic (EPICC) Thematic Collections Network. [A. Hendy/A. Hendy/A. Hendy]
74398 L. R. Saul. 1988. Latest Cretaceous and Early Tertiary Tudiclidae and Melongenidae (Gastropoda) From the Pacific Slope of North-America. Journal of Paleontology 62(6):880-889 [J. Marcot/J. Marcot]
58450 R. L. Squires and L. R. Saul. 2007. Paleocene pareorine turritellid gastropods from the Pacific slope of North America. The Nautilus 121(1):1-16 [P. Wagner/P. Wagner]