UCMP B-7297: Late/Upper Pleistocene, Mexico
collected by D.R. Lindberg and J.E. Sutton 1975
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Anthozoa
- Scleractinia
- Pocilloporidae
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Pocillopora guadalupensis
Durham 1980
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Durham 1980 | |||||||||
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Echinoidea
- Cidaroida
- Cidaridae
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Eucidaris thouarsii
(Valencienncs 1846)
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| original and current combination Cidaris thouarsii | ||||||||||
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Thecostraca
- Balanomorpha
- Tetraclitidae
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Tetraclita squamosa
Bruguière 1789
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Malacostraca
- Decapoda
- Xanthidae
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Cycloxanthops cf. novemdentatus
(Lockington 1876)
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| original and current combination Xanthodes novemdentatus | ||||||||||
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Gastropoda
- Patellida
- Lottiidae
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Lottia gigantea
Sowerby 1834
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Collisella scabra
(Gould 1846)
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| original and current combination Patella (Lottia) scabra | ||||||||||
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Collisella limatula
(Carpenter 1864)
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| original and current combination Patella limatula | ||||||||||
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Gastropoda
- Lepetellida
- Fissurellidae
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Fissurella volcano
Reeve 1849
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Gastropoda
- Lepetellida
- Haliotidae
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cf. Haliotis fulgens
Philippi 1845
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| subspecies "guadalupensis" | ||||||||||
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Gastropoda
- Turbinidae
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cf. Astraea undosa
(Wood 1828)
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| recombined as Megastraea undosa | ||||||||||
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Homalopoma luridum
Dall 1885
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| recombined as Homalopoma (Homalopoma) luridum | ||||||||||
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Gastropoda
- Tegulidae
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Tegula eiseni
Jordan 1936
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| recombined as Agathistoma eiseni | ||||||||||
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cf. Norrisia norrisi
(Sowerby I 1838)
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| recombined as Norrisia norrisii | ||||||||||
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Gastropoda
- Cypraeidae
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cf. Cypraea cernica
Sowerby 1870
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| recombined as Erosaria cernica | ||||||||||
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Gastropoda
- Neogastropoda
- Conidae
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Conus purpurascens
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Gastropoda
- Neogastropoda
- Columbellidae
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Mitrella guttata
(Sowerby 1832)
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Gastropoda
- Neogastropoda
- Marginellidae
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Volvarina taeniolata
Mörch 1860
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Gastropoda
- Hipponicidae
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Hipponix cranioides
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Gastropoda
- Naticidae
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Sinum sp.
Röding 1798
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Gastropoda
- Littorinidae
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Littorina keenae
Rosewater 1978
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| recombined as Littorina (Neritrema) keenae | ||||||||||
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Bivalvia
- Mytilida
- Mytilidae
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Brachidontes adamsianus
(Dunker 1857)
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Lasaeidae
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Lasaea sp.
Brown 1827
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Polychaeta
- Sabellida
- Serpulidae
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Serpulidae indet.
Rafinesque 1835
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| 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: | CAS,UCMP | ||
| Collectors: | D.R. Lindberg and J.E. Sutton | Collection dates: | 1975 |
Metadata
| Also known as: | CASG 58718 | ||
| Database number: | 194405 | ||
| Authorizer: | P. Holroyd | Enterer: | E. Orzechowski |
| Modifier: | E. Orzechowski | Research group: | marine invertebrate |
| Subset of collection #: | 84573 | ||
| Created: | 2018-06-19 16:04:52 | Last modified: | 2018-06-19 18:26:51 |
| Access level: | the public | Released: | 2018-06-19 16:04:52 |
| 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] |