Cuneognathus gardineri type locality: Famennian, Greenland
collected by H. Bütler 1954

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
see common names

Geography
Country:Greenland State/province:Northeast Greenland National Park County:Celsius Bjerg
Coordinates: 73.1° North, 23.2° West (view map)
Paleocoordinates:15.9° South, 12.9° West (Wright 2013)
Basis of coordinate:based on political unit
Altitude:1200 meters
Geographic resolution:outcrop
Time
Period: Devonian Epoch: Late Devonian
Stage: Famennian 10 m.y. bin: Devonian 5
Key time interval: Famennian
Age range of interval: 372.15 - 358.86 m.y. ago
Stratigraphy
Formation:Obrutschew Bjerg
Stratigraphic resolution:formation
Stratigraphy comments: “[R]ecent palynological analyses of the Obrutschew Bjerg Formation on Stensiö Bjerg, Gauss Halve, reveal a major turnover in the spore faunas within the unit, demonstrating that this formation straddles the Devonian-Carboniferous boundary (J. E. A. Marshall, personal commun., 2003). Between the lower and upper portions of the formation, which yield diagnostically Devonian and Carboniferous palynomorph assemblages, respectively, is an interval rich in amorphous organic matter (AOM) but lacking spores (Fig. 1). Analyses of rock matrix containing the actinopterygian specimens reported here yield only AOM and no palynomorphs, indicating that these fossils originate from the barren portion of the formation (J. E. A. Marshall, personal commun., 2003). The palynomorph Retispora lepidophyta (Kedo, 1957) Playford, 1976, the last appearance of which marks the end of the Devonian, is found on both sides of this AOM-rich zone, indicating that this interval and the actinopterygian fossils which it contains are latest Famennian in age.” (Friedman and Blom 2006)
Lithology and environment
Primary lithology:black "shale"
Secondary lithology: mudstone
Includes fossils?Y
Lithology description: "a dark calcareous shale with fish and plant remains at about 1,200m on the western ridge on the south side of Celsius Bjerg" (H. Bütler, letter To E. Jarvik, Dated 1954; Translated from German; Quoted in Friedman and Blom 2006) "This formation is 4–6 m thick and consists of black shales in association with dark limestones, grey mudstones, and red sandstones." (Friedman and Blom 2006)
Environment:lacustrine indet.
Geology comments: "The depositional environment has been interpreted as lacustrine characterized by anaerobic conditions (Olsen, 1993; Olsen and Larsen, 1993). The Obrutschew Bjerg Formation represents the uppermost depositional complex of the Celsius Bjerg Group, which is dominated by a combination of floodplain siltstones and shales and point bar sandstones." (Friedman and Blom 2006)
Taphonomy
Modes of preservation:adpression
Degree of concentration:dispersed
Size of fossils:macrofossils
Spatial orientation:random
Preservation of anatomical detail:medium
Abundance in sediment:rare
Spatial resolution:allochthonous
Collection methods and comments
Collection excludes:all macrofossils,all microfossils
Collection methods:mechanical,hydrochloric,survey of museum collection
Collection size:4 individuals
Reason for describing collection:taxonomic analysis
Collectors: H. Bütler Collection dates:1954
Collection method comments: Repository: Geological Museum, Copenhagen
Metadata
Also known as:South Face of Celsius Bjerg
Database number:135941
Authorizer:S. Peters Enterer:S. McMullen
Modifier:S. Fasey Research group:vertebrate
Created:2012-11-12 15:12:54 Last modified:2025-02-22 15:12:02
Access level:the public Released:2012-11-12 15:12:54
Creative Commons license:CC0
Reference information

Primary reference:
43484. M. Friedman and H. L. Blom. 2006. A new Actinopterygian from the Famennian of East Greenland and the interrelationships of Devonian ray-finned fishes. Journal of Paleontology 80(6):1186-1204 [S. Peters/S. McMullen/S. McMullen]