Standard Oil Co. locality no. AR.25.58: Emsian, Canada
collected by H.-P. Schultze and M. Otto 1995
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Dipnomorpha
- Holoptychiidae
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Nasogaluakus chorni n. gen., n. sp.
Schultze 2000
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Schultze 2000 | 1 specimen | ||||||||
| CMN 51129 | ||||||||||
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Dipnoi
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Melanognathus canadensis
Jarvik 1967
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Eurypterida
- Drepanopteridae
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Drepanopterus sp.
Laurie 1892
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Braddy and Dunlop 2000 | 2 specimens | ||||||||
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Eurypterida
- Erieopteridae
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Erieopterus microphthalmus
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Braddy and Dunlop 2000 | 6 specimens | ||||||||
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Eurypterida
- Carcinosomatidae
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Carcinosoma sp.
Claypole 1890
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Braddy and Dunlop 2000 | 1 specimen | ||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Northwest Territories | County: | Paulatuk |
| Coordinates: | 68.2° North, 125.8° West (view map) | ||||
| Paleocoordinates: | 7.2° South, 33.3° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | local area |
Time
| Period: | Devonian | Epoch: | Early/Lower Devonian |
| Stage: | Emsian | 10 m.y. bin: | Devonian 2 |
| Key time interval: | Emsian | ||
| Age range of interval: | 407.60000 - 393.30000 m.y. ago |
Stratigraphy
| Formation: | Bear Rock |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | lime mudstone |
| Secondary lithology: | dolomite |
| Environment: | lagoonal/restricted shallow subtidal |
| Geology comments: The palaeoenvironment most likely represents a nearshore marine
environment based on sedimentology and associations | |
Taphonomy
| Modes of preservation: | body,adpression |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Spatial orientation: | preferred |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | rare |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection excludes: | all macrofossils,all microfossils | ||
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Collection size: | 9 specimens | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | H.-P. Schultze and M. Otto | Collection dates: | 1995 |
| Taxonomic list comments:Repository: Canadian Museum of Nature, Ottawa, Ontario, Canada (CNM) | |||
Metadata
| Also known as: | Mr. Ben Moore's Anderson River traverse in summer 1958 | ||
| Database number: | 136240 | ||
| Authorizer: | S. Peters, G. Lloyd, R. Plotnick | Enterer: | S. McMullen, R. Plotnick, G. Lloyd |
| Modifier: | R. Plotnick | Research group: | vertebrate |
| Created: | 2012-11-24 04:31:55 | Last modified: | 2022-04-26 12:30:01 |
| Access level: | the public | Released: | 2012-11-24 04:31:55 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 43585. | H. P. Schultze. 2001. Melanognathus, a primitive dipnoan from the Lower Devonian of the Canadian Arctic and the interrelationships of Devonian dipnoans. Journal of Vertebrate Paleontology 21(4):781-794 [S. Peters/S. McMullen/S. McMullen] |
Secondary references:
| 81466 | S.J. Braddy and J. A. Dunlop. 2000. Early Devonian eurypterids from the Northwest Territories of Arctic Canada. Canadian Journal of Earth Sciences 37:1167-1175 [R. Plotnick/R. Plotnick] | |
| 72234 | H.-P. Schultze. 2000. A porolepiform rhipidistian from the Lower Devonian of the Canadian Arctic. Mitteilungen aus dem Museum fur Naturkunde Berlin, Geowissenschaften Reihe 3:99-109 [G. Lloyd/G. Lloyd] |