Cottonwood Canyon: Early Devonian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
spore, Chibrikova
spore, Richardson & Lister
Retusotriletes simplex microspore Naumova 1953
spore, Naumova
Psilophytopsida - Psilophytales - Psilophytaceae
= Tanner's Morphotype I
Psilophytopsida - Psilophytales
Gosslingia americana fertile axis
unclassified
Drepanophycus devonicus fertile axis, sterile axis
several hundred specimens
Dictyotriletes indet. microspore Naumova 1950
spore
spore, Richardson & Lister
spore, Richardson & Lister
cf. Emphanisporites rotatus microspore Macgregor 1973
spore, McGregor
Dipnoi - Uranolophidae
vertebrate
unclassified
probably Hostinella
Paleocuticularia perforata n. gen., n. sp. cuticle
spore
spore, McGregor & Camfield
spore, McGregor & Camfield
Pteraspidomorpha - Pteraspidiformes - Protaspididae
fish
fish
Pteraspidomorpha - Pteraspidiformes
fish
fish
Pteraspidomorpha - Cardipeltidae
vertebrate
vertebrate
unclassified
spore, (Allen) Streel
spore, Richardson & Lister
see common names

Geography
Country:United States State/province:Wyoming County:Bighorn County
Coordinates: 44.9° North, 108.1° West (view map)
Paleocoordinates:26.5° South, 75.4° West (Wright 2013)
Basis of coordinate:estimated from map
Altitude:1532 meters
Geographic resolution:outcrop
Time
Period: Devonian Epoch: Early Devonian
10 m.y. bin: Devonian 1-2
*Period:Early/Lower Devonian
Key time interval: Early Devonian
Age range of interval: 419.62 - 393.47 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Beartooth Butte
Lithology and environment
Primary lithology:dolomitic lithified silty,sandy "mixed carbonate-siliciclastic"
Includes fossils?Y
Lithology description: contains basal dolomitic conglomerate overlain by a variety of dolomitic sandstones, shales, siltstones, and sandy, silty, or conglomeratic dolomites (Blackstone and McGrew, 1954; Sandberg, 1961b, 1967). plant fossils found only on exposure on southern wall of canyon.
Environment:marginal marine indet.
Taphonomy
Modes of preservation:mold/impression,adpression,permineralized,replaced with pyrite
Size of fossils:macrofossils,microfossils
Spatial orientation:random
Preservation of anatomical detail:variable
Disassociated major elements:some
Disassociated minor elements:some
Size sorting:poor
Temporal resolution:time-averaged
Spatial resolution:allochthonous
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:selective quarrying,surface (float),chemical,mechanical,peel or thin section,field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:26179
Authorizer:P. Gensel Enterer:P. Gensel
Modifier:J. Flannery-Sutherland Research group:paleobotany
Subset of collection #:3931
Collections that are a subset of this one:153534
Created:2002-10-07 14:41:18 Last modified:2025-02-22 15:12:02
Access level:the public Released:2002-10-07 14:41:18
Creative Commons license:CC0
Reference information

Primary reference:

7258. W. R. Tanner. 1984. A Fossil Flora from the Beartooth Butte Formation of Northern Wyoming. [P. Gensel/P. Gensel/P. Gensel]

Secondary references:

90148 R. Denison. 1953. Early Devonian Fishes from Utah. Part II Heterostraci. Fieldiana: Geology 11(2):1-78 [J. Flannery-Sutherland/J. Flannery-Sutherland]