UCLA loc. 7110, Garapito Creek: Late/Upper Campanian, California
collected by Alderson 1983
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Turbinidae
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Atira sp.
(Stewart 1927)
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Groves and Alderson 2008 | |||||||||
| original and current combination Margarites (Atira) | ||||||||||
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Gastropoda
- Lepetellida
- Haliotidae
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Haliotis sp.
Linnaeus 1758
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Groves and Alderson 2008 | |||||||||
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Gastropoda
- Turritellidae
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Turritella chicoensis
Gabb 1864
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Groves and Alderson 2008 | |||||||||
| SUBSPECIES: Turritella chicoensis pescaderoensis | ||||||||||
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Gastropoda
- Neogastropoda
- Volutidae
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Volutoderma sp.
Gabb 1877
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Groves and Alderson 2008 | |||||||||
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Gastropoda
- Neogastropoda
- Perissityidae
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Perissitys pacifica
Popenoe and Saul 1987
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Gastropoda
- Naticidae
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Gyrodes pacificum
(Popenoe et al. 1987)
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Groves and Alderson 2008 | |||||||||
| original and current combination Gyrodes (Sohlella) pacificus | ||||||||||
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Gastropoda
- Heterostropha
- Ringiculidae
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Biplica obliqua
(Gabb 1864)
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Groves and Alderson 2008 | |||||||||
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Bivalvia
- Trigoniida
- Megatrigoniidae
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Pterotrigonia evansana
(Meek 1864)
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Groves and Alderson 2008 | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Calva sp.
Popenoe 1937
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Groves and Alderson 2008 | |||||||||
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris veatchii
(Gabb 1864)
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Groves and Alderson 2008 | |||||||||
| recombined as Glycymerita veatchii | ||||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Groves and Alderson 2008 | |||||||||
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Cephalopoda
- Ammonitida
- Placenticeratidae
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Metaplacenticeras pacificum
(Smith 1900)
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Groves and Alderson 2008 | |||||||||
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites cf. inornatus
Meek 1862
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Groves and Alderson 2008 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Los Angeles |
| Coordinates: | 34.1° North, 118.6° West (view map) | ||||
| Paleocoordinates: | 40.0° North, 88.7° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Late/Upper Campanian | Ammonoid zone: | Metaplacenticeras pacificum |
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Formation: | Tuna Canyon | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Tuna Canyon Fm, for which lithostratigraphic relationships are not discussed. AGE: Late Cretaceous (late middle to early late Campanian), Metaplacenticeras pacificum ammonite zone [33N chron]. STRATIGRAPHIC POSITION: From the base of informal "member D" of Wilson (1941). | |||||
Lithology and environment
| Primary lithology: | fine,shelly/skeletal lithified sandstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Fossiliferous fine-grained sandstone. LITHIFICATION: Lithified, on the basis of figured specimens. | |
| Environment: | coastal indet. |
Taphonomy
| Modes of preservation: | body,mold/impression |
| 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: | Alderson | Collection dates: | 1983 |
| Collection method comments: COLLECTOR: J.M. Alderson, 1983. REPOSITORY: LACMIP, Los Angeles, CA. | |||
| Taxonomic list comments:COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature and species-resolution identifications. | |||
Metadata
| Also known as: | LACMIP loc. 27110 | ||
| Database number: | 98225 | ||
| Authorizer: | A. Hendy, J. Marcot | Enterer: | A. Hendy, J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2010-09-26 11:49:49 | Last modified: | 2020-11-09 14:09:18 |
| Access level: | the public | Released: | 2010-09-26 11:49:49 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 24379. | 1% 7220 | W. P. Popenoe and L. R. Saul. 1987. Evolution and classification of the Late Cretaceous-Early Tertiary gastropod Perissitys. Contributions in Science 380:1-37 [W. Kiessling/U. Merkel] |
Secondary references:
| 33947 | L. T. Groves and J. M. Alderson. 2008. Earliest record of the genus Haliotis (Mollusca: Gastropoda) from the Late Cretaceous (Campanian) of Los Angeles County, California. The Veliger 50(1):24-26 [A. Hendy/A. Hendy] |