OCPC Loc. 2604, Fletcher Jones site: Late/Upper Pleistocene, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Sinomactra falcata
Gastropoda - Trochidae
Tegula gallina (Forbes 1850)
recombined as Chlorostoma gallina
Tegula aureotincta (Forbes 1852)
1 specimen
recombined as Chlorostoma aureotincta
Calliostoma tricolor Gabb 1865
1 specimen
Calliostoma gemmulatum Carpenter 1864
2 specimens
Gastropoda - Tegulidae
Tegula eiseni Jordan 1936
8 specimens
recombined as Agathistoma eiseni
Gastropoda - Lepetellida - Fissurellidae
Diodora arnoldi McLean 1966
6 specimens
Fissurella volcano Reeve 1849
2 specimens
Gastropoda - Epitoniidae
Epitonium sp. Bolten 1798
1 specimen
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula onyx Sowerby 1824
1 specimen
Crucibulum spinosum Conrad 1855
4 specimens
Gastropoda - Potamididae
Cerithidea californica (Haldeman 1840)
17 specimens
recombined as Cerithideopsis californica
Gastropoda - Neogastropoda - Olividae
Olivella biplicata (Sowerby 1825)
2 specimens
recombined as Callianax biplicata
Olivella baetica Carpenter 1864
6 specimens
recombined as Callianax baetica
Gastropoda - Neogastropoda - Nassariidae
Nassarius perpinguis (Hinds 1844)
2 specimens
recombined as Caesia perpinguis
Nassarius tegula (Reeve 1853)
5 specimens
recombined as Phrontis tegula
Gastropoda - Neogastropoda - Columbellidae
Alia carinata (Hinds 1844)
1 specimen
Gastropoda - Neogastropoda - Conidae
Conus californicus Reeve 1844
3 specimens
recombined as Californiconus californicus
Gastropoda - Neogastropoda - Terebridae
Terebra danai Berry 1958
recombined as Neoterebra danai
Gastropoda - Neogastropoda - Turridae
Ophiodermella cf. inermis (Reeve 1843)
Gastropoda - Neogastropoda - Muricidae
Stramonita biserialis (de Blainville 1832)
1 specimen
recombined as Thais biserialis
Eupleura muriciformis (Broderip 1833)
3 specimens
Forreria belcheri (Hinds 1843)
Pteropurpura festiva (Hinds 1844)
Gastropoda - Bursidae
Crossata californica (Hinds 1843)
2 specimens
synonym of Crossata ventricosa
Gastropoda - Naticidae
Neverita reclusianus (Deshayes 1839)
4 specimens
recombined as Glossaulax reclusiana
Sinum scopulosum (Conrad 1849)
1 specimen
recombined as Sinum scopulosus
Gastropoda - Heterostropha - Ellobiidae
Melampus olivaceus Carpenter 1857
5 specimens
Gastropoda - Opisthobranchia - Bullidae
Bulla gouldiana Pilsbry 1895
3 specimens
Bivalvia - Arcida - Arcidae
Anadara perlabiata (Grant, IV and Gale 1931)
7 specimens
Bivalvia - Pectinida - Anomiidae
Anomia peruviana d'Orbigny 1846
5 specimens
Bivalvia - Pectinida - Pectinidae
Argopecten ventricosus (Sowerby 1842)
20 specimens
Leptopecten latiauratus (Conrad 1837)
1 specimen
Bivalvia - Ostreida - Ostreidae
Ostrea conchaphila Carpenter 1857
20 specimens
Bivalvia - Mytilida - Mytilidae
Septifer bifurcatus (Conrad 1837)
1 specimen
Mytilus sp. Linnaeus 1758
Bivalvia - Lucinida - Lucinidae
Lucinisca nuttalli (Conrad 1837)
9 specimens
Epilucina californica (Conrad 1837)
1 specimen
original and current combination Phacoides californicus
Bivalvia - Pholadida - Myidae
Cryptomya californica (Conrad 1837)
3 specimens
Bivalvia - Pholadida - Corbulidae
Juliacorbula luteola (Carpenter 1864)
1 specimen
recombined as Caryocorbula luteola
Bivalvia - Cardiida - Chamidae
Pseudochama exogyra (Conrad 1837)
3 specimens
original and current combination Chama exogyra
Bivalvia - Cardiida - Veneridae
Veneridae indet. Rafinesque 1815
Pitar newcombianus (Gabb 1865)
2 specimens
recombined as Pitar (Pitar) newcombianus
Petricolaria cognata (Adams 1852)
2 specimens
Megapitaria squalida (Sowerby 1833)
1 specimen
Chione fluctifraga (Sowerby 1853)
1 specimen
recombined as Chionista fluctifraga
Chione californiensis (Broderip and Sowerby I 1835)
15 specimens
Bivalvia - Cardiida - Ungulinidae
Diplodonta sericata (Reeve 1850)
1 specimen
recombined as Diplodonta (Felaniella) sericata
Bivalvia - Cardiida - Mactridae
Mactridae indet. Lamarck 1809
Bivalvia - Cardiida - Cardiidae
Trachycardium cf. panamense (Sowerby I 1833)
7 specimens
synonym of Mexicardia procera
Bivalvia - Cardiida - Solecurtidae
Tagelus sp. Gray 1847
5 specimens
Bivalvia - Cardiida - Donacidae
Donax californicus Conrad 1837
7 specimens
recombined as Donax (Paradonax) californicus
Donax gouldi (Dall 1921)
12 specimens
recombined as Donax (Donax) gouldii
Bivalvia - Cardiida - Tellinidae
Tellina meropsis Dall 1900
2 specimens
recombined as Tampaella meropsis
Macoma sp. Leach 1819
1 specimen
Macoma nasuta (Conrad 1837)
Macoma carlottensis Whiteaves 1880
2 specimens
recombined as Psammacoma carlottensis
Bivalvia - Carditida - Carditidae
Cyclocardia ventricosa (Gould 1850)
1 specimen
recombined as Coanicardita ventricosa
Bivalvia - Carditida - Crassatellidae
Crassinella nuculiformis Berry 1940
2 specimens
Scaphopoda - Dentaliida - Dentaliidae
Dentalium neohexagonum Sharp and Pilsbry 1897
6 specimens
Malacostraca - Decapoda
Decapoda indet. Latreille 1802
14 specimens
Thecostraca - Balanomorpha - Balanidae
? Balanus sp. Da Costa 1778
8 specimens
Echinoidea
Echinoidea indet. (Leske 1778)
Echinoidea - Clypeasteroida - Dendrasteridae
Dendraster excentricus (Eschscholz 1826)
39 specimens
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:96937
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2010-07-13 08:05:51 Last modified:2013-11-25 13:37:23
Access level:the public Released:2010-07-13 08:05:51
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]