LACMIP Loc. 22719 - Rosarito Beach: Pleistocene, Mexico
collected by Cunningham & Valentine 1952

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca - Balanomorpha - Balanidae
Tamiosoma regalis (Pilsbry 1916)
Zullo 1992
Bivalvia - Mytilida - Mytilidae
Mytilus californianus Conrad 1837
C category
Septifer bifurcatus (Conrad 1837)
R category
Bivalvia - Ostreida - Ostreidae
Ostrea megodon Hanley 1846
R category
recombined as Undulostrea megodon
Bivalvia - Pectinida - Anomiidae
Pododesmus macroschisma (Deshayes 1839)
R category
recombined as Pododesmus (Monia) macrochisma
Bivalvia - Arcida - Glycymerididae
Glycymeris aff. profunda (Dall 1879)
R category
synonym of Glycymeris septentrionalis
Glycymeris subobsoleta (Carpenter 1864)
U category
synonym of Glycymeris septentrionalis
Bivalvia - Solenida - Pharidae
Siliqua patula (Dixon 1789)
R category
Bivalvia - Cardiida - Cardiidae
Trachycardium cf. quadragenarium (Conrad 1837)
R category
recombined as Dallocardia quadragenarium
Bivalvia - Cardiida - Donacidae
Donax gouldi (Dall 1921)
U category
recombined as Donax (Donax) gouldii
Bivalvia - Cardiida - Mactridae
Schizothaerus nuttalli (Conrad 1837)
C category
recombined as Tresus nuttallii
Bivalvia - Cardiida - Veneridae
Protothaca staminea (Conrad 1837)
C category
recombined as Leukoma staminea
Chione undatella (Sowerby I 1835)
R category
Petricola carditoides (Conrad 1837)
U category
recombined as Petricola (Petricola) carditoides
Tivela stultorum (Mawe 1823)
U category
recombined as Tivela (Pachydesma) stultorum
Bivalvia - Pholadida - Pholadidae
Pholadidea penita (Conrad 1837)
R category
recombined as Penitella penita
Bivalvia - Lucinida - Lucinidae
Lucinisca nuttalli (Conrad 1837)
R category
Here excavata (Carpenter 1857)
R category
Gastropoda - Heterostropha - Trimusculidae
Trimusculus reticulata (Sowerby 1835)
C category
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula nummaria Gould 1846
R category
Gastropoda - Hipponicidae
Hipponix antiquatus (Linnaeus 1767)
U category
    = Antisabia panamensis Adams 1852
Hendy 2020
Gastropoda - Littorinidae
Littorina scutulata Gould 1849
C category
recombined as Littorina (Littorina) scutulata
Littorina planaxis Philippi 1847
R category
replaced by Littorina (Neritrema) keenae
Gastropoda - Neogastropoda - Muricidae
Acanthina paucilirata
U category
Nucella emarginata
R category
Acanthina spirata (Blainville 1832)
C category
recombined as Acanthinucella spirata
Gastropoda - Neogastropoda - Olividae
Olivella biplicata (Sowerby 1825)
C category
recombined as Callianax biplicata
Gastropoda - Neogastropoda - Turridae
Megasurcula carpenteriana (Gabb 1866)
R category
Gastropoda - Neogastropoda - Nassariidae
Nassa fossata (Gould 1849)
A category
recombined as Caesia fossatus
Nassa perpinguis Hinds 1844
U category
recombined as Caesia perpinguis
Gastropoda - Neogastropoda - Columbellidae
Mitrella carinata (Hinds 1844)
R category
recombined as Alia carinata
Gastropoda - Bursidae
Bursa californica (Hinds 1843)
C category
synonym of Crossata ventricosa
Gastropoda - Vermetidae
Aletes squamigerus Carpenter 1857
R category
recombined as Thylacodes squamigerus
Gastropoda - Naticidae
Euspira lewisii (Gould 1847)
U category
Gastropoda - Trochidae
Tegula funebralis (Adams 1855)
U category
original and current combination Chlorostoma funebrale
Calliostoma ligatum (Gould 1849)
R category
recombined as Calliostoma ligatus
Gastropoda - Lepetellida - Haliotidae
Haliotis sp. Linnaeus 1758
R category
Gastropoda - Lepetellida - Fissurellidae
Diodora aspera (Rathke 1833)
R category
Megatebennus bimaculata (Dall 1871)
U category
recombined as Fissurellidea bimaculata
Gastropoda - Patellida - Lottiidae
Acmaea digitalis Eschscholtz 1833
C category
recombined as Lottia digitalis
Acmaea insessa (Hinds 1842)
R category
recombined as Lottia insessa
Acmaea scutum Eschscholtz 1833
R category
recombined as Lottia scutum
Acmaea mitra Eschscholtz 1833
R category
Polyplacophora - Neoloricata - Acanthochitonidae
Cryptochiton stelleri (Middendorf 1847)
R category
Polyplacophora - Neoloricata - Mopaliidae
Mopalia hindsi
R category
see common names

Geography
Country:Mexico State/province:Baja California
Coordinates: 32.3° North, 117.0° West (view map)
Paleocoordinates:32.3° North, 116.7° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
Key time interval:Pleistocene
Age range of interval:2.58800 - 0.01170 m.y. ago
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit, for which stratigraphic relations are not discussed. AGE: PLeistocene. STRATIGRAPHIC POSITION: Unconsolidated pebble conglomerate exposed in sea cliff.
Lithology and environment
Primary lithology:pebbly unlithified conglomerate
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Unconsolidated pebble conglomerate. LITHIFICATION: Unlithified, on the basis of facies description.
Environment:marine indet.
Taphonomy
Modes of preservation:body,original aragonite,original calcite
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:LACM
Collectors:Cunningham & Valentine Collection dates:1952
Collection method comments: COLLECTORS: Cunningham and Valentine, 1952. REPOSITORY: Apparently, UCLA.
Taxonomic list comments:COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Authoritative publication, with somewhat antiquated nomenclature, but with species resolution.
Metadata
Also known as:UCLA Loc. 2719
Database number:96594
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Collections that are a subset of this one:160235
Created:2010-06-13 17:21:46 Last modified:2016-02-28 23:49:43
Access level:the public Released:2010-06-13 17:21:46
Creative Commons license:CC BY
Reference information

Primary reference:

32785. J. W. Valentine. 1957. Late Pleistocene faunas from the northwestern coast of Baja California, Mexico. Transactions of the San Diego Society of Natural History 12(16):298-308 [A. Hendy/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]
52284 V. A. Zullo. 1992. Revision of the balanid barnacle genus Concavus Newman, 1982, with the description of a new subfamily, two new genera, and eight new species. The Paleontological Society Memoir 27:1-46 [A. Hendy/A. Hendy]