Nekum Chalk, Maastricht Fm: Late/Upper Maastrichtian, Belgium
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Anpachydiscus fresvillensis
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Kennedy 1986 | ||||||
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Cephalopoda
- Ammonitida
- Diplomoceratidae
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Diplomoceras cylindraceum
(Defrance 1816)
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Kennedy 1986 | ||||||
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites anceps
Lamarck 1822
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Kennedy 1986 | ||||||
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Baculites vertebralis
Lamarck 1801
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Kennedy 1986 | ||||||
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Cephalopoda
- Ammonitida
- Scaphitidae
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Hoploscaphites constrictus
(Sowerby 1817)
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Kennedy 1986 | ||||||
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Cephalopoda
- Ammonitida
- Sphenodiscidae
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Sphenodiscus binkhorsti
Böhm 1898
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Kennedy 1986 | ||||||
| see common names | |||||||
Geography
| Country: | Belgium |
| Coordinates: | 50.9° North, 4.7° East (view map) |
| Paleocoordinates: | 43.5° North, 3.7° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Late/Upper Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Maastricht | Member: | Nekum | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Nekum Chalk of the Maastricht Fm, and overlies the Valkenburg Chalk of the Maastricht Fm. AGE: early Late Maastrichtian, on the basis of ammonite and belemnite biostratigraphy. STRATIGRAPHIC POSITION: Collection is a composite of the entire member. | |||||
Lithology and environment
| Primary lithology: | lithified lime mudstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: No specific lithological data reported in text. Probably chalk. LITHIFICATION: Lithified on the basis of figured specimens. | |
| Environment: | carbonate indet. |
| Geology comments: ENVIRONMENT: Shallow marine carbonate setting. | |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | surface (in situ),survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: COLLECTORS: Multople collectors. REPOSITORY: Institut Royal de Science Naturelles de Belgique (IRSNB), Naturhistorisch Museum, Maastricht (NHM), Museum für Naturkunde, Berlin (MNB) | |
| Taxonomic list comments:COVERAGE: Limited to representative, common, and biostratigraphically important ammonoids and belemnites. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature and species-resolution identifications. | |
Metadata
| Database number: | 82493 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-07-28 08:35:25 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2008-07-28 08:35:25 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27763. | W. J. Kennedy. 1986. The Campanian-Maastrichtian ammonite sequence in the environs of Maastricht (Limburg, the Netherlands), Limburg and Liége provinces (Belgium). Newsletters in Stratigraphy 16(3):149-168 [A. Hendy/A. Hendy] |
Secondary references:
| 27872 | W. J. Kennedy. 1986. The ammonite fauna of the type Maastrichtian with a revision of Ammonites colligatus Binkhorst, 1861. Bull. Inst. r. Sci. nat. Belg.: Science de la Terre 56:151-267 [A. Hendy/A. Hendy] |