B-1395, Punta La Cholla: Late/Upper Pleistocene, Mexico
collected by Emerson & Loring 1954

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Turbinidae
Turbo fluctuosus Wood 1828
recombined as Turbo (Callopoma) fluctuosus
Gastropoda - Tegulidae
Tegula cf. mariana
Tegula rugosa
Tegula rubroflammulata
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula sp. Lamarck 1799
Gastropoda - Strombidae
Strombus galeatus Swainson 1823
Gastropoda - Neogastropoda - Olividae
Olivella cf. dama (Mawe 1828)
Oliva incrassata (Lightfoot 1786)
Oliva spicata Durham 1950
Gastropoda - Neogastropoda - Buccinidae
Solenosteira cf. pallida
Gastropoda - Neogastropoda - Nassariidae
Nassarius cf. leucops
Gastropoda - Neogastropoda - Conidae
Conus cf. regularis Sowerby 1841
Gastropoda - Neogastropoda - Muricidae
Murex radix Gmelin 1791
SUBSPECIES: Murex radix nigritus
    = Muricanthus nigritus Philippi 1845
Keen 1971
Acanthina angelica
Acanthina muricata
SUBSPECIES: Acanthina muricata tuberculata
Gastropoda - Cypraeidae
Cypraea cf. annettae Dall 1909
recombined as Pseudozonaria annettae
Gastropoda - Naticidae
Polinices reclusianus (Deshayes 1839)
recombined as Glossaulax reclusiana
Gastropoda - Vermetidae
Aletes sp. Carpenter 1857
synonym of Serpulorbis
Gastropoda - Neritidae
Nerita scabricosta
Bivalvia - Pectinida - Anomiidae
Anomia peruviana d'Orbigny 1846
Bivalvia - Pectinida - Pectinidae
Pecten circularis Sowerby 1835
    = Argopecten ventricosus Sowerby 1842
Coan et al. 2000
Pecten vogdesi (Arnold 1906)
recombined as Euvola vogdesi
Bivalvia - Ostreida - Ostreidae
Ostrea palmula (Carpenter 1857)
recombined as Saccostrea palmula
Bivalvia - Mytilida - Mytilidae
Lithophaga sp. Röding 1798
Modiolus capax (Conrad 1837)
Bivalvia - Lucinida - Lucinidae
Codakia distinguenda (Tryon 1872)
Bivalvia - Cardiida - Chamidae
Chama frondosa Broderip 1835
SUBSPECIES: Chama frondosa mexicana
Bivalvia - Cardiida - Veneridae
Megapitaria squalida (Sowerby 1833)
Dosinia ponderosa (Gray 1838)
Chione cf. californiensis (Broderip and Sowerby I 1835)
Bivalvia - Cardiida - Cardiidae
Cardium procerum Sowerby 1833
recombined as Mexicardia procera
Bivalvia - Cardiida - Solecurtidae
Tagelus californianus (Conrad 1837)
recombined as Tagelus (Tagelus) californianus
Bivalvia - Cardiida - Tellinidae
Apolymetis cf. cognata Pilsbry and Vanatta 1902
recombined as Leporimetis cognata
Bivalvia - Cardiida - Semelidae
Semele flavescens (Gould 1851)
Bivalvia - Carditida - Carditidae
Glans affinis (Sowerby 1823)
recombined as Carditamera affinis
SUBSPECIES: Glans affinis californica
Gymnolaemata - Cheilostomata - Microporidae
Caleschara mexicana
Gymnolaemata - Cheilostomata - Electridae
Conopeum commensale
Gymnolaemata - Cheilostomata - Hippoporidridae
Hippopodinella adpressa
synonym of Odontoporella
Malacostraca - Decapoda - Eriphiidae
Eriphia squamata Stimpson 1859
Thecostraca - Balanomorpha - Balanidae
Balanus cf. amphitite
Balanus sp. Da Costa 1778
Thecostraca - Balanomorpha - Tetraclitidae
Tetraclita squamosa
Echinoidea - Clypeasteroida - Mellitidae
Encope sp. Agassiz 1840
Actinopteri
Teleostei indet. (Müller 1846)
see common names

Geography
Country:Mexico State/province:Sonora
Coordinates: 31.3° North, 113.6° West (view map)
Paleocoordinates:31.3° North, 113.5° 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:Late/Upper Pleistocene
Age range of interval:0.12600 - 0.01170 m.y. ago
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an unknown lithostratigraphic unit, which unconformably overlies granitic rocks. AGE: Late Pleistocene, on the basis of molluscan biostratigraphy. STRATIGRAPHIC POSITION: Poorly-cemented fossiliferous sandstone, 4 to 10 feet in thickness and overlain by 2 to 10 feet of conglomerate, outcropping in terrace face.
Lithology and environment
Primary lithology:shelly/skeletal poorly lithified sandstone
Lithology description: SPECIFIC LITHOLOGY: Poorly-cemented fossiliferous sandstone. LITHIFICATION: Poorly lithified, on the basis of facies description.
Environment:coastal indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collectors:Emerson & Loring Collection dates:1954
Collection method comments: COLLECTOR: W. K. Emerson and A. P. Loring, 1954. REPOSITORY: Unknown, possible SDNHM.
Taxonomic list comments:COVERAGE: Not an authoritative publication, with somewhat antiquated nomenclature, but with species-resolution identifications
Metadata
Database number:96557
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2010-06-12 12:03:05 Last modified:2013-11-25 13:37:23
Access level:the public Released:2010-06-12 12:03:05
Creative Commons license:CC BY
Reference information

Primary reference:

32777. L. G. Hertlein. 1956. Marine Pleistocene Invertebrates from near Puerto Penasco, Sonora, Mexico. Transactions of the San Diego Society of Natural History 12(8):154-176 [A. Hendy/A. Hendy]

Secondary references:

18663 E. V. Coan, P. V. Scott, and F. R. Bernard. 2000. Bivalve seashells of western North America. Santa Barbara Museum of Natural history Monographs 2:1-764 [A. Miller/A. Hendy/M. Uhen]
32800 A. M. Keen. 1971. Sea Shells of Tropical West America 1-1064 [A. Hendy/A. Hendy]