Mariana Limestone (detrital facies): Pleistocene, Guam
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Cerithiidae
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Rhinoclavis (Rhinoclavis) aspera
(Linnaeus 1758)
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Ladd 1972 | ||||||
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Gastropoda
- Turritellidae
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Turritella (Kurosioia) fileola
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Ladd 1972 | ||||||
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Gastropoda
- Trochidae
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Trochus (Trochus) maculatus
(Linnaeus 1758)
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| original and current combination Trochus maculatus | |||||||
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Gastropoda
- Lepetellida
- Haliotidae
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Haliotis (Padollus) ovina
(Gmelin 1791)
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Haliotis (Padollus) cf. clathrata
(Reeve 1846)
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| see common names | |||||||
Geography
| Country: | Guam |
| Coordinates: | 13.5° North, 144.8° East (view map) |
| Paleocoordinates: | 13.4° North, 145.0° East |
| Basis of coordinate: | based on political unit |
| Geographic resolution: | basin |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Pleistocene | ||
| Age range of interval: | 2.58000 - 0.01170 m.y. ago |
Stratigraphy
| Formation: | Mariana Limestone | ||||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Mariana Limestone, which overlies the Alifan Limestone (Late Miocene) and is overlain by Quaternary beach deposits. AGE: Pleistocene on the basis of foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: From "detrital" facies of the Mariana Limestone. | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Limestone facies. LITHIFICATION: Lithified, on the basis of facies description. | |
| Environment: | lagoonal/restricted shallow subtidal |
| Geology comments: ENVIRONMENT: Lagoonal detrital facies. | |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: COLLECTORS: Multiple collectors, including Cloud, Schmidt, and Burke (1948-1949, 1953), and Ladd (1958). REPOSITORY: USNM (formely USGS collections). | |
| Taxonomic list comments:COVERAGE: Not quite exhaustive, but comprehensive for gastropods. Bivalves not covered in publications. NOMENCLATURE: Authoritative publication, with moderately modern nomenclature, with subgenus and species-resolution assignments. | |
Metadata
| Database number: | 77935 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-01-23 18:09:24 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | authorizer only | Released: | 2009-01-23 18:09:24 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 26223. | H. S. Ladd. 1966. Chitons and Gastropods (Haliotidae through Adeorbidae) from Western Pacific Islands. United States Geological Survey Professional Paper 531:1-98 [A. Hendy/A. Hendy/J. Millet] |
Secondary references:
| 11409 | H. S. Ladd. 1972. Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Turritellidae through Strombidae). United States Geological Survey Professional Paper 532:1-79 [A. Miller/A. Hendy/A. Hendy] |