Bed 4, Landana Section: Selandian, Angola
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
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Podocnemis congolensis
Dollo 1912
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Gaffney et al. 2006 | |||||||||
| recombined as Taphrosphys congolensis | ||||||||||
| MRAC 6322, 6323, 13,527-13,529, 13,721-13,727 | ||||||||||
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Reptilia
- Testudines
- Cheloniidae
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Cabindachelys landanensis
Myers et al. 2018
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Myers et al. 2018 | |||||||||
| MRAC 4796 | ||||||||||
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Cephalopoda
- Nautilida
- Hercoglossidae
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Hercoglossa diderrichi
Vincent 1913
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Cimomia landanensis
(Vincent 1913)
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| (3 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Angola |
| Coordinates: | 5.2° South, 12.1° East (view map) |
| Paleocoordinates: | 14.6° South, 3.6° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| Stage: | Selandian | 10 m.y. bin: | Cenozoic 1 |
| Key time interval: | Selandian | ||
| Age range of interval: | 61.60000 - 59.20000 m.y. ago |
Stratigraphy
| Formation: | Landana | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Bed 4 assigned to the early Selandian on the basis of planktonic foraminifera biostratigraphy (Solé et al., 2018) and dinoflagellates (Steeman et al., 2019).
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Lithology and environment
| Primary lithology: | pebbly,shelly/skeletal lithified packstone |
| Includes fossils? | Y |
| Lithology description: Foraminiferal packstone containing shell fragments and quartz pebbles, according to Solé et al. (2018). | |
| Environment: | deep subtidal indet. |
| Geology comments: Lower part of the section (beds 2-12) contains interbedded skeletal grainstones, packstones, and wackestones, with very little terrigenous component (Solé et al., 2018; Steeman et al., 2019). Tentatively assigned to a deep subtidal environment. | |
Taphonomy
| Modes of preservation: | body,cast,mold/impression |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | poor |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | SUI |
| Collection method comments: COLLECTORS: Probably T.H. Clark and E. Vincent. REPOSITORY: State University of Iowa. | |
Metadata
| Database number: | 82060 | ||
| Authorizer: | A. Hendy, M. Uhen, E. Vlachos | Enterer: | A. Hendy, E. Vlachos, M. Uhen |
| Modifier: | M. Clapham | Research group: | marine invertebrate,vertebrate |
| Created: | 2008-07-21 18:29:21 | Last modified: | 2019-08-18 12:59:13 |
| Access level: | the public | Released: | 2008-07-21 18:29:21 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27671. | A. K. Miller. 1935. The "Paleocene" nautiloid cephalopods of Landana, Portuguese West Africa. Journal of Paleontology 9(2):167-173 [A. Hendy/A. Hendy/A. Hendy] |
Secondary references:
| 27976 | E. S. Gaffney, H. Tong, and P. A. Meylan. 2006. Evolution of the side-necked turtles: The families Bothremydidae, Euraxemydidae, and Araripemydidae. Bulletin of the American Museum of Natural History 300:1-318 [M. Uhen/M. Uhen/M. Uhen] | |
| 28131 | A. K. Miller. 1951. Tertiary nautiloids of west-coastal Africa. Annales du Museé du Congo Belge Tervuren, Sciences Géologiques 8:1-88 [A. Hendy/A. Hendy] | |
| 63791 | T. S. Myers, M. J. Polcyn, O. Mateus, D. P. Vineyard, A. O. Goncalves and L. J. Jacobs. 2018. A new durophagous stem cheloniid turtle from the lower Paleocene of Cabinda, Angola. Papers in Palaeontology 4(2):161-176 [E. Vlachos/E. Vlachos/P. Mannion] | |
| 66354 | A. Pérez García, F. Mees, and T. Smith. 2018. Shell anatomy of the African Paleocene bothremydid turtle Taphrosphys congolensis and systematic implications within Taphrosphyini. Historical Biology [P. Mannion/P. Mannion] |