OCPC Loc. 2603, Fletcher Jones site: Late/Upper Pleistocene, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca - Balanomorpha - Coronulidae
? Coronula sp. Bruguière 1792
1 specimen
Thecostraca - Balanomorpha - Balanidae
? Balanus sp. Da Costa 1778
12 specimens
Malacostraca - Decapoda
Decapoda indet. Latreille 1802
5 specimens
Bivalvia - Nuculida - Nuculidae
Nucula exigua Sowerby 1833
1 specimen
recombined as Nucula (Lamellinucula) exigua
Bivalvia - Mytilida - Mytilidae
Modiolus cf. carpenteri Soot-Ryen 1963
1 specimen
Bivalvia - Ostreida - Ostreidae
Ostrea conchaphila Carpenter 1857
9 specimens
Bivalvia - Pectinida - Anomiidae
Anomia peruviana d'Orbigny 1846
5 specimens
Bivalvia - Pectinida - Pectinidae
Euvola vogdesi (Arnold 1906)
2 specimens
Argopecten ventricosus (Sowerby 1842)
113 specimens
Crassadoma gigantea (Gray 1825)
1 specimen
Bivalvia - Arcida - Arcidae
Anadara perlabiata (Grant, IV and Gale 1931)
5 specimens
Bivalvia - Carditida - Crassatellidae
Crassinella nuculiformis Berry 1940
1 specimen
Bivalvia - Cardiida - Cardiidae
Trachycardium cf. panamense (Sowerby I 1833)
5 specimens
synonym of Mexicardia procera
Laevicardium substriatum (Conrad 1837)
2 specimens
Bivalvia - Cardiida - Semelidae
Semele venusta (Reeve 1853)
3 specimens
recombined as Semele (Amphidesma) venusta
Bivalvia - Cardiida - Solecurtidae
Tagelus sp. Gray 1847
1 specimen
Tagelus affinis (Adams 1852)
8 specimens
recombined as Tagelus (Tagelus) affinis
Bivalvia - Cardiida - Tellinidae
Macoma sp. Leach 1819
1 specimen
Macoma carlottensis Whiteaves 1880
7 specimens
recombined as Psammacoma carlottensis
Macoma nasuta (Conrad 1837)
3 specimens
Bivalvia - Cardiida - Donacidae
Donax californicus Conrad 1837
5 specimens
recombined as Donax (Paradonax) californicus
Donax gouldi (Dall 1921)
9 specimens
recombined as Donax (Donax) gouldii
Bivalvia - Cardiida - Psammobiidae
Nuttallia nuttallii (Conrad 1837)
4 specimens
Bivalvia - Cardiida - Chamidae
Chama arcana Bernard 1976
2 specimens
Bivalvia - Cardiida - Mactridae
Mactromeris sp. Conrad 1868
Bivalvia - Cardiida - Veneridae
Chione gnidia (Broderip and Sowerby I 1829)
22 specimens
recombined as Chionopsis gnidia
Chione fluctifraga (Sowerby 1853)
2 specimens
recombined as Chionista fluctifraga
Chione cortezi (Carpenter 1864)
7 specimens
synonym of Chionista fluctifraga
Chione sp. von Mühlfield 1811
5 specimens
Chione californiensis (Broderip and Sowerby I 1835)
11 specimens
Megapitaria squalida (Sowerby 1833)
1 specimen
Petricolaria cognata (Adams 1852)
4 specimens
Tivela stultorum (Mawe 1823)
1 specimen
recombined as Tivela (Pachydesma) stultorum
Amiantis callosa (Conrad 1837)
4 specimens
Pitar newcombianus (Gabb 1865)
2 specimens
recombined as Pitar (Pitar) newcombianus
Bivalvia - Cardiida - Ungulinidae
Diplodonta sericata (Reeve 1850)
26 specimens
recombined as Diplodonta (Felaniella) sericata
Bivalvia - Pholadida - Pholadidae
Zirfaea pilsbryi Lowe 1931
Bivalvia - Pholadida - Corbulidae
Juliacorbula luteola (Carpenter 1864)
2 specimens
recombined as Caryocorbula luteola
Bivalvia - Pholadida - Myidae
Cryptomya californica (Conrad 1837)
1 specimen
Platyodon cancellatus (Conrad 1837)
Bivalvia - Lucinida - Lucinidae
Lucinisca nuttalli (Conrad 1837)
9 specimens
Scaphopoda - Dentaliida - Dentaliidae
Dentalium neohexagonum Sharp and Pilsbry 1897
7 specimens
Gastropoda - Opisthobranchia - Bullidae
Bulla gouldiana Pilsbry 1895
1 specimen
Gastropoda - Heterostropha - Ellobiidae
Melampus olivaceus Carpenter 1857
3 specimens
Gastropoda - Neotaenioglossa - Calyptraeidae
Crucibulum spinosum Conrad 1855
4 specimens
Crepidula cf. coei Berry 1950
4 specimens
synonym of Crepidula naticarum
Gastropoda - Hipponicidae
Hipponix craniodes
1 specimen
Gastropoda - Neogastropoda - Muricidae
Eupleura muriciformis (Broderip 1833)
4 specimens
Ocenebra circumtexta
1 specimen
Stramonita biserialis (de Blainville 1832)
recombined as Thais biserialis
Acanthinucella sp.
1 specimen
spelled with current rank as Nucella (Acanthinucella)
Acanthinucella spirata (Blainville 1832)
Pteropurpura festiva (Hinds 1844)
1 specimen
Gastropoda - Neogastropoda - Olividae
Olivella baetica Carpenter 1864
6 specimens
recombined as Callianax baetica
Olivella biplicata (Sowerby 1825)
2 specimens
recombined as Callianax biplicata
Gastropoda - Neogastropoda - Conidae
Conus californicus Reeve 1844
1 specimen
recombined as Californiconus californicus
Gastropoda - Neogastropoda - Terebridae
Terebra danai Berry 1958
recombined as Neoterebra danai
Gastropoda - Neogastropoda - Turridae
Ophiodermella inermis (Reeve 1843)
1 specimen
Gastropoda - Neogastropoda - Nassariidae
Nassarius cerritensis
3 specimens
Nassarius perpinguis (Hinds 1844)
1 specimen
recombined as Caesia perpinguis
Nassarius tegula (Reeve 1853)
3 specimens
recombined as Phrontis tegula
Gastropoda - Neogastropoda - Columbellidae
Aesopus chrysalloides (Carpenter 1863)
3 specimens
Gastropoda - Bursidae
Crossata californica (Hinds 1843)
synonym of Crossata ventricosa
Gastropoda - Triviidae
Pusula solandri (Sowerby 1832)
1 specimen
Gastropoda - Cypraeidae
Zonaria spadicea (Swainson 1823)
recombined as Neobernaya spadicea
Gastropoda - Naticidae
Neverita reclusianus (Deshayes 1839)
5 specimens
recombined as Glossaulax reclusiana
Gastropoda - Epitoniidae
Epitonium sp. Bolten 1798
5 specimens
Gastropoda - Turritellidae
Turritella mariana
1 specimen
Gastropoda - Potamididae
Cerithidea californica (Haldeman 1840)
6 specimens
recombined as Cerithideopsis californica
Gastropoda - Tegulidae
Tegula eiseni Jordan 1936
7 specimens
recombined as Agathistoma eiseni
Gastropoda - Trochidae
Tegula aureotincta (Forbes 1852)
3 specimens
recombined as Chlorostoma aureotincta
Tegula gallina (Forbes 1850)
recombined as Chlorostoma gallina
Calliostoma nuttalli
Calliostoma gemmulatum Carpenter 1864
2 specimens
Gastropoda - Lepetellida - Fissurellidae
Diodora arnoldi McLean 1966
2 specimens
Fissurella volcano Reeve 1849
3 specimens
Gastropoda - Patellida - Lottiidae
"Collisella" scabra (Gould 1846)
3 specimens
original and current combination Patella (Lottia) scabra
Echinoidea - Clypeasteroida - Dendrasteridae
Dendraster excentricus (Eschscholz 1826)
18 specimens
unclassified
Astraea undosa (Wood 1828)
2 specimens
recombined as Megastraea undosa
see common names

Geography
Country:United States State/province:California County:Orange
Coordinates: 33.6° North, 117.9° West (view map)
Paleocoordinates:33.6° North, 117.9° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Pleistocene
Age range of interval:0.12600 - 0.01170 m.y. ago
Age estimate:122 Ka (U/Pb)
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unnamed terrace deposits that overly the Niguel Fm (Late Pleistocene) AGE: Late Pleistocene, on the basis of geochemical dating. Uranium series dating (Grant et al., 1999) of a solitary coral from a nearby correlated locality gave an age of 122,000, giving the Fletcher Jones site an approximate age range of 120-125 Ka. STRATIGRAPHIC POSITION: From terrace deposits 2-2.5 m above an unconformity with the Niguel Fm.
Lithology and environment
Primary lithology:"cross stratification" unlithified sandstone
Secondary lithology: poorly lithified silty mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Grades from a silty mudstone to a cross-bedded moderately well-sorted, unconsolidated sand. LITHIFICATION: Unlithified, on the basis of facies description and sample preparation.
Environment:coastal indet.
Geology comments: ENVIRONMENT: Mixed thanatocoenosis, incl. representatives from protected bay, sandy-bottom and rocky-bottom, protected to open coasts, and offshore environments.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:bulk,sieve,field collection
Reason for describing collection:paleoecologic analysis
Collection method comments: COLLECTOR; Powell et al. REPOSITORY: Orange Co. Paleontology Collections.
Taxonomic list comments:COVERAGE: Exhaustive for molluscs, other invertebrate taxa also included. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Metadata
Database number:96936
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2010-07-13 08:05:39 Last modified:2013-11-25 13:37:23
Access level:the public Released:2010-07-13 08:05:39
Creative Commons license:CC BY
Reference information

Primary reference:

33094. C. L. Powell II, L. B. Grant, and S. W. Conkling. 2005. Paleoecologic analysis and age of a late Pleistocene fossil assemblage from Upper Newport Bay, Newport Beach, Orange County, California. The Veliger 47(3):183-192 [A. Hendy/A. Hendy]