UCMP B-7336: Late/Upper Pleistocene, Mexico
collected by C.L. Hubbs, K.O. Emery, and E.P. Chase 1957

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Littorinidae
Littorina keenae Rosewater 1978
recombined as Littorina (Neritrema) keenae
Gastropoda - Cypraeidae
Cypraea cernica Sowerby 1870
recombined as Erosaria cernica
Gastropoda - Neogastropoda - Muricidae
Thais planospira
Gastropoda - Neogastropoda - Conidae
Conus princeps
Gastropoda - Hipponicidae
Hipponix cranioides
Gastropoda - Trochidae
Tegula gallina (Forbes 1850)
recombined as Chlorostoma gallina
Gastropoda - Tegulidae
Tegula eiseni Jordan 1936
recombined as Agathistoma eiseni
Norrisia norrisi (Sowerby I 1838)
recombined as Norrisia norrisii
Gastropoda - Lepetellida - Fissurellidae
Fissurella volcano Reeve 1849
Gastropoda - Lepetellida - Haliotidae
cf. Haliotis fulgens Philippi 1845
subspecies "guadalupensis"
Gastropoda - Patellida - Lottiidae
Collisella limatula (Carpenter 1864)
original and current combination Patella limatula
Anthozoa - Scleractinia - Pocilloporidae
Pocillopora guadalupensis Durham 1980
Durham 1980 1 specimen
Pocillopora guadalupensis Durham 1980
see common names

Geography
Country:Mexico State/province:Baja California
Coordinates: 29.0° North, 118.2° West (view map)
Paleocoordinates:29.0° North, 118.2° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Quaternary Epoch:Pleistocene
Stage:Late/Upper Pleistocene 10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Pleistocene
Age range of interval:0.12900 - 0.01170 m.y. ago
Age estimate:127 ± 4 to 117 ± 3 Ka (U/Th)
Stratigraphy
Formation:Discovery Point
Stratigraphic resolution:group of beds
Stratigraphy comments: 127-117 ka age (Marine Isotope Substage 5e) for corals that were directly dated from localities SDMNH 0633 (UCMP D1547), 0644, and 2465 (Muhs 1994); dates are inferred to apply to the rest of the Discovery Point Formation; cliff talus 1 to 5 m above sea level (Lindberg et al. 1980)
Lithology and environment
Primary lithology: lithified conglomerate
Secondary lithology: "limestone"
Lithology description: Discovery Point Formation: coarsely clastic sediments that grade laterally from conglomerate, locally with pebbles of volcanic origin, to a biostrome formed chiefly of coral fragments and mollusk shells.
Environment:perireef or subreef
Glacial or sequence phase:interglacial
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,microfossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Museum repositories:SDSM,UCMP
Collectors:C.L. Hubbs, K.O. Emery, and E.P. Chase Collection dates:1957
Metadata
Also known as:SDMNH 0642
Database number:194400
Authorizer:P. Holroyd Enterer:E. Orzechowski
Modifier:E. Orzechowski Research group:marine invertebrate
Subset of collection #:84573
Created:2018-06-19 15:59:25 Last modified:2018-06-19 18:26:35
Access level:the public Released:2018-06-19 15:59:25
Creative Commons license:CC BY
Reference information

Primary reference:
30033. D. R. Lindberg, B. Roth, M. G. Kellogg and C. L. Hubbs. 1980. Invertebrate megafossils of Pleistocene (Sangamon Interglacial) age from Isla de Guadalupe, Baja California, Mexico. In D. M. Power (ed.), The California Islands: Proceedings of a Multidisciplinary Symposium 41-70 [W. Kiessling/U. Merkel/P. Wagner]

Secondary references:

30034 J. W. Durham. 1980. A new fossil Pocillopora (coral) from Guadalupe Island, Mexico. In D. M. Power (ed.), The California Islands: Proceedings of a Multidisciplinary Symposium 63-70 [W. Kiessling/U. Merkel/E. Orzechowski]