Arnager Limestone Formation, Arnager/Horsemyre Odde, Bornholm: Coniacian, Denmark
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Myalinida
- Inoceramidae
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Inoceramus waltersdorfensis
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Tröger and Christensen 1991 | 1 specimen | ||||||||
| I. waltersdorfensis cf. hannovrensis | ||||||||||
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Inoceramus cf. annulatus
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Tröger and Christensen 1991 | 1 specimen | ||||||||
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Inoceramus cf. renngarteni
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Tröger and Christensen 1991 | 2 specimens | ||||||||
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Inoceramus cf. wandereri
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Tröger and Christensen 1991 | 1 specimen | ||||||||
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Inoceramus sp.
Sowerby 1814
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Tröger and Christensen 1991 | 1 specimen | ||||||||
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Inoceramus informal sp. 1
Sowerby 1814
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Tröger and Christensen 1991 | 3 specimens | ||||||||
| I. ex gr. striatoconcentricus | ||||||||||
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Inoceramus informal sp. 2
Sowerby 1814
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Tröger and Christensen 1991 | 4 specimens | ||||||||
| I. ex gr. waltersdorfensis | ||||||||||
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Inoceramus aff. cuvierii
Sowerby 1814
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Tröger and Christensen 1991 | 1 specimen | ||||||||
| corrected as Inoceramus cuvieri | ||||||||||
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Inoceramus (Heroceramus) cf. hercules
(Heinz 1932)
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Tröger and Christensen 1991 | 6 specimens | ||||||||
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Inoceramus cf. rotundatus
Fiege 1930
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Tröger and Christensen 1991 | 1 specimen | ||||||||
| recombined as Cremnoceramus rotundatus | ||||||||||
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Inoceramus striatoconcentricus
Gümbel 1968
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Tröger and Christensen 1991 | 1 specimen | ||||||||
| recombined as Mytiloides striatoconcentricus | ||||||||||
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Inoceramus lusatiae
Andert 1911
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Tröger and Christensen 1991 | 6 specimens | ||||||||
| recombined as Mytiloides lusatiae | ||||||||||
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Inoceramus (Mytiloides) cf. incertus
Jimbo 1894
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Tröger and Christensen 1991 | 2 specimens | ||||||||
| recombined as Mytiloides incertus | ||||||||||
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Inoceramus (Sphenoceramus) cf. guerichi
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Tröger and Christensen 1991 | 1 specimen | ||||||||
| original and current combination Sphenoceramus | ||||||||||
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Cephalopoda
- Belemnitida
- Belemnitellidae
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Actinocamax lundgreni
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6 specimens | |||||||||
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Cephalopoda
- Ammonitida
- Diplomoceratidae
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Neocrioceras (Schlueterella) cf. maderi
(Immel et al. 1982)
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Kennedy and Christensen 1991 | 4 specimens | ||||||||
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Scalarites sp.
Wright and Matsumoto 1954
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Kennedy and Christensen 1991 | 3 specimens | ||||||||
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Cephalopoda
- Ammonitida
- Scaphitidae
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Yezoites sp.
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Kennedy and Christensen 1991 | 14 specimens | ||||||||
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Scaphites (Scaphites) kieslingswaldensis
(Langenhan and Grundey 1891)
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Kennedy and Christensen 1991 | 7 specimens | ||||||||
| S. (S.) kieslingswaldensis kieslingswaldensis | ||||||||||
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Cephalopoda
- Ammonitida
- Collignoniceratidae
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Peroniceras (Peroniceras) tridorsatum
(Schlüter 1867)
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Kennedy and Christensen 1991 | 1 specimen | ||||||||
| see common names | ||||||||||
Geography
| Country: | Denmark |
| Coordinates: | 55.1° North, 14.8° East (view map) |
| Paleocoordinates: | 45.1° North, 13.9° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Coniacian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Coniacian | ||
| Age range of interval: | 89.80000 - 86.30000 m.y. ago |
Stratigraphy
| Formation: | Arnager Limestone | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: 'Gry (1960) estimated the thickness of the formation to be about 12-20 m.' | |||||
Lithology and environment
| Primary lithology: | lithified argillaceous "limestone" |
| Lithology description: 'marly chalk (hard splintery limestone) with a 20 cm thick basal bed of phosphatized and glauconitized pebbles... the lower 7 m of the strongly bioturbated formation is light grey and has a carbonate content varying from 45-70%.' | |
| Environment: | deep subtidal shelf |
| Geology comments: 'Noe-Nygaard and Surlyk (1985) showed that deposition of the formation at Arnagar took place in a complex of low mud mounds, and they suggested that the mounds were caused by the baffling effect of dense growth of siliceous sponges and sponge spicule mats.' | |
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Museum repositories: MGUH and GM | |
| Taxonomic list comments:fragments are not included in abundace data of belemnites | |
Metadata
| Database number: | 70001 | ||
| Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
| Modifier: | M. Manojlovic | Research group: | marine invertebrate |
| Created: | 2007-03-14 01:53:59 | Last modified: | 2016-07-25 15:39:54 |
| Access level: | the public | Released: | 2007-03-14 01:53:59 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 23526. | T. Birkelund. 1957. Upper Cretaceous belemnites from Denmark. Biologiske Skrifter. Det Kongelige Danske Viden-skabernes Selskab 9(1):1-69 [M. Aberhan/S. Nurnberg/P. Wagner] |
Secondary references:
| 23523 | W. J. Kennedy and W. K. Christensen. 1991. Coniacian and Santonian ammonites from Bornholm, Denmark. Bulletin of the Geological Society of Denmark 38:203-226 [M. Aberhan/S. Nurnberg/M. Clapham] | |
| 23500 | K.-A. Tröger and W. K. Christensen. 1991. Upper Cretaceous (Cenomanian-Santonian) inoceramid bivalve faunas from the island of Bornholm, Denmark. Geological Survey of Denmark, DGU Series A (28)1-47 [M. Aberhan/S. Nurnberg/S. Nurnberg] |