Tönjesbergs, near Hannover: Early/Lower Kimmeridgian, Germany
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Plesiochelyidae
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Plesiochelys hannoverana n. sp.
(Maack 1869)
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| synonym of Plesiochelys etalloni | ||||||||||
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Plesiochelys minor n. sp.
Portis 1878
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1 specimen | |||||||||
| nomen dubium belonging to Plesiochelys | ||||||||||
| partial plastron (fig. 8) | ||||||||||
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Stylemys lindenensis n. sp.
Maack 1869
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Maack 1869 | |||||||||
| nomen dubium belonging to Plesiochelyidae | ||||||||||
| GZG 773-18 to GZG 773-34 (syntypes), a series of fragmentary and disarticulated shell elements | ||||||||||
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Reptilia
- Eurysternidae
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Chelonides wittei n. gen., n. sp.
Maack 1869
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Reptilia
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Chelonides robusta n. sp.
Portis 1878
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1 specimen | |||||||||
| nomen dubium belonging to Tropidemys | ||||||||||
| partial shell (figs 14-15) | ||||||||||
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Tropidemys seebachi n. sp.
Portis 1878
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1 specimen | |||||||||
| partial shell (figs 1-5) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Germany | State/province: | Lower Saxony |
| Coordinates: | 52.4° North, 9.7° East (view map) | ||
| Paleocoordinates: | 43.5° North, 17.7° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Late/Upper Jurassic |
| Stage: | Kimmeridgian | 10 m.y. bin: | Jurassic 5 |
| Key time interval: | Early/Lower Kimmeridgian | ||
| Age range of interval: | 154.80000 - 152.20000 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "Oberen Jura" (Portis 1878)
"Lower Kimmeridgian in the German sense, imprecise: it is at least as old as the area Mutabilis after ostracods, and possibly even earlier, according to R. Böttcher (pers. comm.)" (translation of Lapparent de Broin et al. 1996, p. 536) | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,replaced with calcite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Tönjes Berg | ||
| Database number: | 138029 | ||
| Authorizer: | R. Benson, E. Vlachos | Enterer: | R. Benson, E. Vlachos |
| Modifier: | M. Carrano | Research group: | marine invertebrate |
| Created: | 2013-01-04 00:40:40 | Last modified: | 2018-01-11 16:07:25 |
| Access level: | the public | Released: | 2013-01-04 00:40:40 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 44146. | A. Portis. 1878. Ueber Fossile Schildkröten aus dem Kimmeridge von Hannover 1-13 [R. Benson/R. Benson/M. Uhen] |
Secondary references:
| 44127 | F. d. Lapparent de Broin, B. Lange-Badré, and M. Dutrieux. 1996. Nouvelles decouvertes de tortues dans le Jurassique Supérieur du Lot (France) et examen du taxon Plesiochelyidae. Revue de Paléobiologie 15(2):533-570 [R. Benson/R. Benson] | |
| 63587 | D. A. Maack. 1869. Die bis jetzt bekannten fossilen Schildkröten und die im oberen Jura bei Kelheim (Bayern) und Hannover neu aufgefundenen ältesten Arten derselben. Palaeontographica 18:193-338 [E. Vlachos/E. Vlachos] |