Woodring Loc. 139h - eastern area [lower Gatun Fm]: Tortonian, Panama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Lirophora (Parachione) mactropsis
Conrad 1855
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A category | |||||||||
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Bivalvia
- Pectinida
- Anomiidae
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Anomia simplex
d'Orbigny 1845
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R category | |||||||||
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Bivalvia
- Cardiida
- Chamidae
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Chama berjadinensis
Hodson 1927
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R category | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Lirophora (Lirophora) falconensis
(Hodson et al. 1927)
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R category | |||||||||
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Agriopoma (Pitarella) gatunensis
(Dall 1903)
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C category | |||||||||
| recombined as Callocardia (Agriopoma) gatunensis | ||||||||||
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Clementia (Clementia) dariena
(Conrad 1855)
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R category | |||||||||
| SUBSPECIES: Clementia (Clementia) dariena dariena | ||||||||||
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Cyclinella cyclica
(Guppy 1866)
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F category | |||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Varicorbula disparilis
(d'Orbigny 1853)
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R category | |||||||||
| see common names | ||||||||||
Geography
| Country: | Panama |
| Coordinates: | 9.3° North, 79.8° West (view map) |
| Paleocoordinates: | 9.1° North, 78.5° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Tortonian | ||
| Age range of interval: | 11.63000 - 7.24600 m.y. ago | ||
| Age estimate: | 10.9 Ma (other) |
Stratigraphy
| Formation: | Gatun | Member: | lower Gatun | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Lower part of the Gatun Formation. The Gatun Formation is sibdivided into three faunal zones (proposed by Thomson and Keen, 1946): lower, middle, and upper. AGE: Late Miocene, on the basis of microfossil biostratigraphy (see Collins and Coates, 1999), refined by enterer to Tortonian based on more recent dating (Hendy, 2012). Sr dating for nearby sections indicates an age of approximately 10.9 Ma (Hendy, unpublished data). | |||||
Lithology and environment
| Primary lithology: | fine unlithified silty sandstone |
| Includes fossils? | Y |
| Lithology description: LITHOLOGY: Soft, silty fine-grained sandstone. | |
| Environment: | marine indet. |
| Geology comments: No specific environmental data presented. | |
Taphonomy
| Modes of preservation: | body |
| 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: COLLECTOR: R.H. Stewart, J.L. Stewart, W.P. Woodring, 1973. REPOSITORY: USNM. | |
| Taxonomic list comments:COVERAGE: Exhaustive for bivalves. NOMENCLATURE: Authoritative publications, with modern nomenclature, and species-resolution identifications. | |
Metadata
| Also known as: | USGS #25278 | ||
| Database number: | 93165 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2010-01-06 07:59:34 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2010-01-06 07:59:34 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 13359. | W. P. Woodring. 1982. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae). United States Geological Survey Professional Paper 306(F) [A. Miller/A. Hendy/A. Hendy] |