Barrett #7: Early/Lower Cretaceous, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Abielites angusticarpus seed repro
Anthrotaxopsis tenuicaulis wood
Ginkgoopsida - Czekanowskiales
Leptostrobus longifolius leaf Berry 1911
Angiospermae - Sapindales - Sapindaceae
Sapindopsis variabilis leaf Fontaine 1889
Angiospermae - Moraceae
Ficophyllum serratum leaf Fontaine 1889
Coniferales - Cupressaceae
Sequoia Reichenbachi leaf
Pinopsida - Pinales - Taxodiaceae
Sphenolepidium parceramosum multi organs Fontaine 1889
synonym of Sphenolepis kurriana
Pinopsida - Pinales - Taxaceae
Sphenolepidium Kurrianum leaf
Geinitzia Jenneyi n. sp. axis
Pinopsida - Pinales
Glyptostrobus brookensis leaf (Fontaine 1889)
original and current combination Taxodium brookense
Pinopsida - Pinales - Pinaceae
Pinus susquaensis leaf Dawson 1882
Pteropsida
Pecopteris Geyleriana leaf
Pecopteris borealis leaf Brongniart 1828
Polypodiopsida - Gleicheniales - Matoniaceae
Weichselia reticulata leaf (Stokes and Webb 1824)
Polypodiopsida
Cladophlebis wyomingensis n. sp. leaf Fontaine 1899
see common names

Geography
Country:United States State/province:Wyoming County:Crook
Coordinates: 44.7° North, 104.2° West (view map)
Paleocoordinates:43.4° North, 53.0° West
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Key time interval:Early/Lower Cretaceous
Age range of interval:145.00000 - 100.50000 m.y. ago
Stratigraphy
Formation:Cretaceous
Stratigraphic resolution:formation
Stratigraphy comments: Due to its late 19th century date of publication, the "Cretaceous Formation" is the highest stratigraphic resolution for this collection.
Lithology and environment
Lithology description: "soft sandstones, clay shales, and clays, light-gray, yellow, and shades of purplish red." Due to its late 19th century date of publication, the "Cretaceous Formation" is the highest stratigraphic resolution for this collection.
Environment:fluvial-lacustrine indet.
Taphonomy
Modes of preservation:body,mold/impression,adpression,original carbon
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:all microfossils,some macrofossils
Collection methods:bulk,field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Also known as:Black Hills
Database number:34865
Authorizer:B. Tiffney Enterer:J. Fosdick
Modifier:J. Fosdick Research group:paleobotany
Created:2003-10-08 10:48:57 Last modified:2003-10-08 14:25:27
Access level:database members Released:2003-10-08 10:48:57
Creative Commons license:CC BY
Reference information

Primary reference:

8563. L.F. Ward. 1899. The Cretaceous formation of the Black Hills as as indicated by the fossil plants. Cretaceous Formation of the Black Hills [B. Tiffney/J. Fosdick/B. Tiffney]