Nanahughmilleria norvegica-Ostracoderm Comm. at Rudstangen, Ringerike Dist.: Rootsikula, Norway
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Pterolepis nitidus
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Pharyngolepis oblongus
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Pharyngolepis heintzi
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Hirella gracilis
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Malacostraca
- Archaeostraca
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Dictyocaris slimoni
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unclassified
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Bunodes sp.
Eichwald 1859
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Eurypterida
- Mixopteridae
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Mixopterus kiaeri
Størmer 1934
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Eurypterida
- Pterygotidae
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Pterygotus holmi
Størmer 1934
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Eurypterida
- Adelophthalmidae
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Nanahughmilleria norvegica
(Kiaer 1911)
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original and current combination Hughmilleria norvegica | |||||||
Eurypterida
- Rhenopteridae
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Brachyopterella pentagonalis
(Størmer 1934)
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Eurypterida
- Parastylonuridae
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Stylonurella reudemanni
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Eurypterida
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Stylonuroides dolichopteroides
(Størmer 1934)
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Chasmataspidida
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Kiaeria limuloides
Størmer 1934
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Xiphosura
- Xiphosurida
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Xiphosurida indet.
Latreille 1802
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Coelolepidae
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Thelodus laevis
(Pander 1856)
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Petromyzontida
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Ateleaspis sp.
Traquair 1889
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Agnatha
- Loganelliformes
- Loganelliidae
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Logania martinssoni
Gross 1967
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recombined as Paralogania martinssoni | |||||||
Anaspida
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Rhyncholepis parvulus
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Phlebolepidiformes
- Katoporididae
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Phlebolepis elegans
Pander 1856
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unclassified
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Logania cf. taiti
(Stetson 1931)
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see common names |
Geography
Country: | Norway |
Coordinates: | 60.2° North, 10.3° East (view map) |
Paleocoordinates: | 16.8° South, 7.6° West |
Basis of coordinate: | based on political unit |
Geographic resolution: | small collection |
Time
Period: | Silurian | Epoch: | Wenlock |
Stage: | Homerian | 10 m.y. bin: | Silurian 2 |
*International age/stage: | Late/Upper Sheinwoodian - Early/Lower Homerian | ||
Key time interval: | Rootsikula | ||
Age range of interval: | 426.20000 - 422.90000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Sundvollen | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: "Close to the Wenlock-Ludlow boundary." |
Lithology and environment
Primary lithology: | gray,green sandstone |
Secondary lithology: | "carbonate" |
Includes fossils? | Y |
Lithology description: "...a succession of red and greyish-green sandstones and black shales interbedded with marine carbonates. The main fossil horizon is found in a 3 cm thick, grayish green, fine-grained sandstone lens and shows a total lcak of marine shelly fossils." | |
Environment: | marine indet. |
Geology comments: "Turner and Turner (1974) interpret the environment...as marine intertidal and tidal flats...[There are] well preserved and articulated...fish [imply] fauna was deposited in very quiet water, nearshore, marine (probably lagoonal and brackish) environment. The comm. is assigned to BA 1. [There are numerous land plant spores, however.]" |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some macrofossils |
Reason for describing collection: | paleoecologic analysis |
Collection method comments: A number of taxa have abundance assessments (rare, common, very common). | |
Taxonomic list comments:Some taxa not listed ("...and other species..."). Numerous vertebrates are included. |
Metadata
Database number: | 14308 | ||
Authorizer: | M. Foote | Enterer: | M. Foote |
Modifier: | P. Wagner | Research group: | marine invertebrate |
Created: | 2002-05-30 14:43:54 | Last modified: | 2018-07-19 13:25:48 |
Access level: | the public | Released: | 2002-05-30 14:43:54 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
6308. | B. G. Baarli, H. B. Keilen, and M. E. Johnson. 1999. Silurian communities of the Oslo Region, Norway. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 327-349 [M. Foote/M. Foote/P. Wagner] |