Clifton Beach: Thanetian, Maryland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Nautilida
- Hercoglossidae
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Hercoglossa tuomeyi
Clark and Martin 1901
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Clark and Martin 1901 | ||||||
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Reptilia
- Testudines
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? Euclastes sp.
Cope 1870
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Reptilia
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Thecachampsa marylandica n. sp.
Clark 1895
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1 specimen | ||||||
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Thecachampsa ? sericodon
Cope 1867
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Case 1901 | ||||||
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Actinopteri
- Istiophoriformes
- Xiphiidae
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Ischyrhiza ? radiata
Clark 1895
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| recombined as Xiphias radiata | |||||||
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Actinopteri
- Scombriformes
- Scombridae
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Cybium sp.
Cuvier 1829
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Leriche 1942 | ||||||
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Chondrichthyes
- Myliobatiformes
- Myliobatidae
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Myliobatis dixoni
Agassiz 1843
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Leriche 1942 | ||||||
| recombined as Aetomylaeus dixoni | |||||||
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Myliobatis copeanus n. sp.
Clark 1895
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| synonym of Aetomylaeus dixoni | |||||||
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Chondrichthyes
- Lamniformes
- Mitsukurinidae
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Odontaspis elegans
(Agassiz 1838)
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| synonym of Otodus macrotus | |||||||
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Chondrichthyes
- Lamniformes
- Otodontidae
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Odontaspis macrota
(Agassiz 1838)
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Leriche 1942 | ||||||
| original and current combination Otodus macrotus | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Maryland | County: | Charles |
| Coordinates: | 38.4° North, 77.3° West (view map) | ||||
| Paleocoordinates: | 39.0° North, 58.4° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| Stage: | Thanetian | 10 m.y. bin: | Cenozoic 1 |
| Key time interval: | Thanetian | ||
| Age range of interval: | 59.20000 - 56.00000 m.y. ago |
Stratigraphy
| Formation: | Aquia |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | glauconitic lithified silty sandstone |
| Environment: | transition zone/lower shoreface |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: Maryland Geological Survey or Johns Hopkins University | |
Metadata
| Database number: | 84045 | ||
| Authorizer: | M. Uhen, M. Clapham | Enterer: | M. Uhen, M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate,vertebrate |
| Created: | 2008-09-16 10:42:31 | Last modified: | 2019-07-23 19:58:26 |
| Access level: | the public | Released: | 2008-09-16 10:42:31 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 41194. | W. B. Clark. 1895. Contributions to the Eocene fauna of the Middle Atlantic slope. Johns Hopkins University Circulars 15(121):3-6 [M. Uhen/M. Uhen/M. Uhen] |
Secondary references:
| 41356 | E. C. Case. 1901. Systematic Paleontology: Reptilia. Maryland Geological Survey Eocene 95-96 [M. Uhen/M. Uhen] | |
| 54246 | W. B. Clark and G. C. Martin. 1901. Mollusca. Maryland Geological Survey, Eocene 122-203 [M. Clapham/M. Clapham] | |
| 41357 | C. R. Eastman. 1901. Pisces. Maryland Geological Survey Eocene 98-115 [M. Uhen/M. Uhen] | |
| 28099 | M. Leriche. 1942. Contribution a l'etude des faunes ichthyologiques marines des terrains tertiaires de la plaine cotiere Atlantique et du centre des Etats-Unis. Memoires de la Societe Geologique de France (Nouvelle Serie) 45:1-111 [M. Uhen/M. Uhen] |