ammonites

Icaronycteris Type Locality: Wasatchian, Wyoming

Where & when
Geology
Taphonomy & methods
Metadata & references
Geography
Country:United States State/province:Wyoming County:Lincoln
Coordinates: 41.8° North, 110.7° West (view map)
Paleocoordinates:46.9° North, 94.3° West
Basis of coordinate:stated in text
Altitude:2200 meters
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Wasatchian
Age range of interval:55.4 - 50.3 m.y. ago
Stratigraphy
Formation:Green River
Stratigraphic resolution:bed
Stratigraphy comments: "about 21 m above Wasatchian Knight Formation"; "of Lysite age"
Lithology and environment
Primary lithology:planar lamination,brown,yellow marl
Lithology description: "marlstone... pairs of layers... fine-grained clastic material, one being a thin dark-brown layer; the other, thicker, more granular, and light-buff in color"
Environment:lacustrine - small
Geology comments: "relatively small Fossil Lake"
Taphonomy
Modes of preservation:body,adpression
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Articulated whole bodies:some
Associated major elements:none
Disassociated major elements:none
Disassociated minor elements:some
Temporal resolution:snapshot
Collection methods and comments
Collection excludes:some genera
Collection methods:field collection,selective quarrying
Reason for describing collection:taxonomic analysis
Collection method comments: nearby fish occurrences presumably are omitted
Metadata
Also known as:Fossil Lake; Green River
Database number:37809
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:paleobotany,vertebrate
Created:2004-03-24 11:18:44 Last modified:2008-11-06 15:05:53
Access level:the public Released:2004-03-24 11:18:44
Reference information
Primary reference:
10080 G. L. Jepsen. 1966. Early Eocene bat from Wyoming. Science 154:1333-1339 [J. Alroy/J. Alroy/J. Alroy]