Lunden, Särdal, reworked phosphatised rocks, Halland: Late/Upper Cenomanian, Sweden
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Hexactinellida
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Hexactinellida indet.
Schmidt 1870
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30 specimens | |||||||||
at least four species | ||||||||||
Hexactinellida
- Lychniscosa
- Ventriculitidae
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? Rhizopoterion sp.
Zittel 1877
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5 specimens | |||||||||
Ventriculites sp.
Mantell 1822
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1 specimen | |||||||||
Hexactinellida
- Lychniscosa
- Callodictyonidae
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Plocoscyphia sp.
Reuss 1846
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1 specimen | |||||||||
Hexactinellida
- Hexactinosa
- Cribrospongiidae
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? Cribrospongia sp.
d'Orbigny 1849
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1 specimen | |||||||||
Hexactinellida
- Hexactinosa
- Euretidae
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Myliusia sp.
Gray 1859
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2 specimens | |||||||||
Rhynchonellata
- Rhynchonellida
- Rhynchonellidae
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"Rhynchonella" aff. spectabilis
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4 specimens | |||||||||
Rhynchonella ? grasiana
d'Orbigny 1849
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7 specimens | |||||||||
recombined as Grasirhynchia grasiana | ||||||||||
"R." grasiana d'Orbigny? | ||||||||||
Rhynchonellata
- Terebratulida
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? Rhynchora sp.
Dalman 1828
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4 specimens | |||||||||
Rhynchonellata
- Terebratulida
- Sellithyrididae
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? Neoliothyrina sp.
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1 specimen | |||||||||
"Rectithyris" ? visae
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5 specimens | |||||||||
"R." visae (Hadding)? | ||||||||||
Bivalvia
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Bivalvia indet.
Linnaeus 1758
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6 specimens | |||||||||
Bivalvia
- Pectinida
- Limidae
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Lima sp.
Bruguière 1797
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2 specimens | |||||||||
Bivalvia
- Pectinida
- Spondylidae
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Spondylus sp.
Linnaeus 1758
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2 specimens | |||||||||
Bivalvia
- Pectinida
- Pectinidae
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Pectinidae indet.
Wilkes 1810
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2 specimens | |||||||||
Bivalvia
- Myalinida
- Inoceramidae
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Inoceramus sp.
Sowerby 1814
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Bivalvia
- Arcida
- Glycymerididae
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? Glycymeris sp.
Da Costa 1778
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1 specimen | |||||||||
Bivalvia
- Arcida
- Arcidae
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Barbatia sp.
Gray 1842
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1 specimen | |||||||||
Bivalvia
- Carditida
- Crassatellidae
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Crassatella regularis
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50 specimens | |||||||||
Crassatella sp.
Lamarck 1799
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5 specimens | |||||||||
Bivalvia
- Hippuritida
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? Hippuritoida indet.
Newell 1965
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9 specimens | |||||||||
corrected as Hippuritida | ||||||||||
?Requeniidae indet. | ||||||||||
Bivalvia
- Lucinida
- Lucinidae
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Lucinidae indet.
Fleming 1828
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1 specimen | |||||||||
Gastropoda
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Gastropoda indet.
Cuvier 1795
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common category | |||||||||
Gastropoda
- Trochidae
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Gibbula sp.
Risso 1826
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1 specimen | |||||||||
? Trochus sp.
Linnaeus 1758
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1 specimen | |||||||||
Cephalopoda
- Ammonitida
- Baculitidae
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Baculites sp.
Lamarck 1799
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2 specimens | |||||||||
Cephalopoda
- Belemnitida
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Belemnitida indet.
Zittel 1895
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6 specimens | |||||||||
Cephalopoda
- Belemnitida
- Belemnitellidae
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? Actinocamax sp.
Miller 1823
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3 specimens | |||||||||
Actinocamax ex gr. primus
Arkhangelsky 1912
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1 specimen | |||||||||
A. ex gr. primus/plenus | ||||||||||
Cephalopoda
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Nautiloidea indet.
Agassiz 1847
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1 specimen | |||||||||
Nautiloid | ||||||||||
Reptilia
- Mosasauridae
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? Plioplatecarpus sp.
Dollo 1882
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1 specimen | |||||||||
Chondrichthyes
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Chondrichthyes indet.
Huxley 1880
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1 element | |||||||||
Chondrichthyes
- Hybodontiformes
- Ptychodontidae
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Ptychodus mammillaris
Agassiz 1835
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2 elements | |||||||||
Chondrichthyes
- Lamniformes
- Lamnidae
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Isurus zippei
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7 elements | |||||||||
? Lamna sp.
Cuvier 1816
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5 elements | |||||||||
Chondrichthyes
- Lamniformes
- Otodontidae
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Lamna appendiculata
Agassiz 1835
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10 elements | |||||||||
recombined as Cretalamna appendiculata | ||||||||||
Chondrichthyes
- Lamniformes
- Anacoracidae
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Squalicorax lindstroemi
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6 elements | |||||||||
Chondrichthyes
- Lamniformes
- Cretoxyrhinidae
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Isurus cf. mantelli
(Agassiz 1835)
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1 element | |||||||||
recombined as Cretoxyrhina mantelli | ||||||||||
Chondrichthyes
- Chimaeriformes
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Chimaeriformes indet.
Obruchev 1953
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Chimaerid, jaw fragments | ||||||||||
see common names |
Geography
Country: | Sweden |
Coordinates: | 56.8° North, 12.6° East (view map) |
Paleocoordinates: | 46.0° North, 11.4° East |
Basis of coordinate: | estimated from map |
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
Key time interval: | Late/Upper Cenomanian | ||
Age range of interval: | 99.60000 - 93.50000 m.y. ago |
Stratigraphy
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: reworked phosphatised rock fragments found in the limestone and the sandstone (Särdal beds); 'based on the presence of Actinocamax ex gr. primus/plenus, can be assigned to the late Cenomanian and/or the A. plenus Zone between the Cenomanian and the Turonian. it is also possible that the Turonian and/or Coniacian may be represented by some rock pieces, but this cannot be verified at present' |
Lithology and environment
Primary lithology: | fine,gray lithified grainstone |
Lithology description: 'The derived phosphatised rock fragments consist of fossiliferous grey limestone... the grey limestone is a fine-grained, light-coloured calcarenite with scattered grains of glauconite.' | |
Environment: | open shallow subtidal |
Glacial or sequence phase: | transgressive |
Geology comments: 'a varied and abundant fauna of hexactinellid sponges indicates that the transgression in the late Cenomanian and/or A. plenus Zone involved a rise in the water level of about 100 m.' |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,microfossils |
Collection methods and comments
Collection excludes: | some macrofossils |
Collection methods: | field collection |
Reason for describing collection: | biostratigraphic analysis |
Collection method comments: authors and amateur collections;
Museum repositories: Geological Survey of Sweden (EN), the Mineralogical Museum in Copenhagen (MMH), Geological Institute in Lund (LO) | |
Taxonomic list comments:'...yielded a rich fauna which, except for the cephalopods, is only preliminarily treated' |
Metadata
Database number: | 70427 | ||
Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
Modifier: | M. Manojlovic | Research group: | marine invertebrate,micropaleontology |
Created: | 2007-03-22 11:51:40 | Last modified: | 2016-07-25 16:24:54 |
Access level: | the public | Released: | 2007-03-22 11:51:40 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
23599. | J. Bergström, W. K. Christensen, C. Johansson and E. Norling. 1973. An extension of Upper Cretaceous Rocks to the Swedish west coast at Särdal. Bull. geol. Soc. Denmark 22:83-154 [M. Aberhan/S. Nurnberg/J. Alroy] |