Madden Airfield USGS 16889: Late/Upper Eocene, Panama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Spatangoida
- Schizasteridae
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Schizaster armiger
Clark and Twitchell 1915
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9 individuals | ||||||
| recombined as Paraster armiger | |||||||
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Echinoidea
- Clypeasteroida
- Laganidae
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Peronella acunai
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Peronella cubae
Weisbord 1934
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1 individual | ||||||
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Echinoidea
- Clypeasteroida
- Neolaganidae
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Peronella dalli
(Clark and Twitchell 1915)
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120 individuals | ||||||
| recombined as Weisbordella dalli | |||||||
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unclassified
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Eupatagus clevei
(Cotteau 1875)
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4 specimens | ||||||
| original and current combination Euspatangus clevei | |||||||
| see common names | |||||||
Geography
| Country: | Panama |
| Coordinates: | 9.0° North, 79.5° West (view map) |
| Paleocoordinates: | 6.5° North, 77.2° West |
| Basis of coordinate: | based on nearby landmark |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Late/Upper Eocene | ||
| Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | lithified lime mudstone |
| Includes fossils? | Y |
| Lithology description: The echinoids occur in limestone that comprises part of the late Eocene formation bearing the foraminiferal faunas recorded by Vaughan (1926) and Coryell and Embich (1937). | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | many |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | occasional |
Collection methods and comments
| Collection excludes: | all microfossils |
| Collection methods: | chemical,survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: These specimens comprise the collection: USGS 16889. They were collected by T.F. Thompson (Chief Geologist of the Panama Canal), W.P. Woodring, and J.R. Schulz. | |
Metadata
| Database number: | 42698 | ||
| Authorizer: | L. Ivany | Enterer: | C. Visaggi |
| Modifier: | C. Visaggi | Research group: | marine invertebrate |
| Created: | 2004-08-04 11:41:18 | Last modified: | 2004-08-09 16:41:18 |
| Access level: | the public | Released: | 2004-08-04 11:41:18 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11355. | C. W. Cooke. 1948. Eocene Echinoids from Panama. Journal of Paleontology 22(1):91-93 [L. Ivany/C. Visaggi/C. Visaggi] |